This oblique photograph, taken by an astronaut from the International Space Station, shows the city of Bangkok illuminated by city lights. As the capital and largest city in Thailand, Bangkok is home to more than 9 million people.
The adjacent waters of the Andaman Sea and Gulf of Thailand are illuminated by hundreds of green lights on fishing boats. Fishermen use the lights to attract plankton and fish, the preferred diet of commercially important squid. As the bait swims to the surface, the squid follow to feed and get caught by fishermen. The same fishing practices are used off the Atlantic coast of South America.
In the photo, the border between Thailand and neighboring Cambodia to the east is distinguished by a marked difference in the number of city lights. Cambodia has less urbanized area and its population is smaller than that of neighboring countries. The majority of Cambodia’s population lives in rural farming areas where electricity is sparse. Phnom Penh is the capital and largest city in Cambodia, with a population of approximately 1.5 million people.
Astronaut photograph ISS053-E-451778 was acquired on December 10, 2017, with a Nikon D5 digital camera using a 24 millimeter lens and is provided by the ISS Crew Earth Observations Facility and the Earth Science and Remote Sensing Unit, Johnson Space Center. The image was taken by a member of the Expedition 53 crew. The image has been cropped and enhanced to improve contrast, and lens artifacts have been removed. The International Space Station Program supports the laboratory as part of the ISS National Lab to help astronauts take pictures of Earth that will be of the greatest value to scientists and the public.
Image Credit: NASA/JSC Gateway to Astronaut Photography of Earth
Caption: Andi Hollier, Hx5, JETS Contract at NASA-JSC
Image Date: December 10, 2017
Release Date: May 14, 2018
Instrument(s): ISS - Digital Camera
#NASA #Space #ISS #Science #Earth #Asia #Thailand #Bangkok #ราชอาณาจักรไทย #กรุงเทพมหานคร #Night #Fishing #FishingBoats #AndamanSea #GulfThailand #Cambodia #ព្រះរាជាណាចក្រកម្ពុជា #PhnomPenh #រាជធានីភ្នំពេញ #Astronauts #Human #Spaceflight #Spacecraft #UnitedStates #Photography #History #STEM #Education #International #OrbitalPerspective #OverviewEffect #Infographic
Friends of NASA (FoN) is an independent non-governmental organization (NGO) dedicated to building international support for peaceful space exploration, commerce, scientific discovery, and STEM education.
Friday, June 01, 2018
Here's How You Can Get Started Stargazing
STEM in 30 | Interested in stargazing, but don't know where to begin? Check out this video for some simple tips on beginning to identify what's in the night sky.
More info: http://airandspace.si.edu/stemin30
Credit: Smithsonian National Air & Space Museum
Duration: 2 minutes, 38 seconds
Release Date: May 2, 2018
#NASA #Astronomy #Space #Skywatching #Stars #Constellations #Stargazing #Moon #Planets #LightPollution #Telescope #Binoculars #Apps #Mobile #Phone #NationalParks #DarkSkies #STEM #Education #Students #Teachers #Learning #Tips #HD #Video
Thursday, May 31, 2018
Earth's Western Hemisphere | NOAA/NASA
While experts continue to address an issue with the cooling system of the satellite’s imager, new views from GOES-17 show that its ABI is providing beautiful—and useful—imagery of the Western Hemisphere. This imagery was created using two visible bands (blue and red) and one near-infrared “vegetation” band that are functional with the current cooling system performance.
The imagery also incorporates input from one of the ABI’s “longwave” infrared bands that is functional during a portion of the day despite the cooling system issue.
When combined as a “GeoColor” image, depicting the Earth in vivid detail and colors intuitive to human vision, these bands provide valuable information for monitoring dust, haze, smoke, clouds, fog, winds and vegetation. ABI imagery also provides information on cloud motion, helping meteorologists monitor and forecast severe weather and hurricanes. The improved resolution and faster scanning ability of the instrument compared to the previous generation of GOES allow forecasters to more rapidly detect and analyze storms as they are developing and intensifying.
GOES-17 is the second in a series of next-generation geostationary weather satellites. Like GOES-16, its sister satellite operating as GOES East, GOES-17 is designed to provide advanced imagery and atmospheric measurements of Earth from 22,300 miles above the equator.
GOES-17 launched on March 1, 2018, from NASA’s Kennedy Space Center. The satellite is currently in its post-launch checkout and testing phase, the period in which its instruments and systems are calibrated, validated and assessed for operational usage. Imagery released from GOES-17 during the post-launch testing phase should be considered preliminary and non-operational.
NOAA’s operational geostationary constellation—GOES-16, operating as GOES-East, GOES-15, operating as GOES-West and GOES-14, operating as the on-orbit spare—is healthy and monitoring weather across the nation each day.
Note: This is preliminary, non-operational data as GOES-17 undergoes on-orbit testing.
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
National Oceanic and Atmospheric Administration (NOAA)
National Aeronautics and Space Administration (NASA)
Credit: NOAA/NASA
Release Date: May 31, 2018
#NASA #NOAA #Earth #Science #Satellite #Weather #Meteorology #GOES17 #ABI #WesternHemisphere #NorthAmerica #SouthAmerica #EarthObservation #RemoteSensing #Goddard #Kennedy #KSC #LockheedMartin #UnitedStates #STEM #Education #HD #Video
Earth's Western Hemisphere | NOAA/NASA
The first imagery from the Advanced Baseline Imager (ABI) of NOAA’s GOES-17 satellite has made its public debut. | May 31, 2018: GOES-17 took this stunning, full-disk imagery of Earth’s Western Hemisphere from its checkout position at 12:00 p.m. EDT on May 20, 2018. GOES-17 observes Earth from an equatorial vantage point approximately 22,300 miles above the surface.
While experts continue to address an issue with the cooling system of the satellite’s imager, new views from GOES-17 show that its ABI is providing beautiful—and useful—imagery of the Western Hemisphere. This imagery was created using two visible bands (blue and red) and one near-infrared “vegetation” band that are functional with the current cooling system performance.
The imagery also incorporates input from one of the ABI’s “longwave” infrared bands that is functional during a portion of the day despite the cooling system issue.
When combined as a “GeoColor” image, depicting the Earth in vivid detail and colors intuitive to human vision, these bands provide valuable information for monitoring dust, haze, smoke, clouds, fog, winds and vegetation. ABI imagery also provides information on cloud motion, helping meteorologists monitor and forecast severe weather and hurricanes. The improved resolution and faster scanning ability of the instrument compared to the previous generation of GOES allow forecasters to more rapidly detect and analyze storms as they are developing and intensifying.
GOES-17 is the second in a series of next-generation geostationary weather satellites. Like GOES-16, its sister satellite operating as GOES East, GOES-17 is designed to provide advanced imagery and atmospheric measurements of Earth from 22,300 miles above the equator.
GOES-17 launched on March 1, 2018, from NASA’s Kennedy Space Center. The satellite is currently in its post-launch checkout and testing phase, the period in which its instruments and systems are calibrated, validated and assessed for operational usage. Imagery released from GOES-17 during the post-launch testing phase should be considered preliminary and non-operational.
NOAA’s operational geostationary constellation—GOES-16, operating as GOES-East, GOES-15, operating as GOES-West and GOES-14, operating as the on-orbit spare—is healthy and monitoring weather across the nation each day.
Note: This is preliminary, non-operational data as GOES-17 undergoes on-orbit testing.
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
National Oceanic and Atmospheric Administration (NOAA)
National Aeronautics and Space Administration (NASA)
Credit: NOAA/NASA
Release Date: May 31, 2018
#NASA #NOAA #Earth #Science #Satellite #Weather #Meteorology #GOES17 #ABI #WesternHemisphere #NorthAmerica #SouthAmerica #EarthObservation #RemoteSensing #Goddard #Kennedy #KSC #LockheedMartin #UnitedStates #STEM #Education
While experts continue to address an issue with the cooling system of the satellite’s imager, new views from GOES-17 show that its ABI is providing beautiful—and useful—imagery of the Western Hemisphere. This imagery was created using two visible bands (blue and red) and one near-infrared “vegetation” band that are functional with the current cooling system performance.
The imagery also incorporates input from one of the ABI’s “longwave” infrared bands that is functional during a portion of the day despite the cooling system issue.
When combined as a “GeoColor” image, depicting the Earth in vivid detail and colors intuitive to human vision, these bands provide valuable information for monitoring dust, haze, smoke, clouds, fog, winds and vegetation. ABI imagery also provides information on cloud motion, helping meteorologists monitor and forecast severe weather and hurricanes. The improved resolution and faster scanning ability of the instrument compared to the previous generation of GOES allow forecasters to more rapidly detect and analyze storms as they are developing and intensifying.
GOES-17 is the second in a series of next-generation geostationary weather satellites. Like GOES-16, its sister satellite operating as GOES East, GOES-17 is designed to provide advanced imagery and atmospheric measurements of Earth from 22,300 miles above the equator.
GOES-17 launched on March 1, 2018, from NASA’s Kennedy Space Center. The satellite is currently in its post-launch checkout and testing phase, the period in which its instruments and systems are calibrated, validated and assessed for operational usage. Imagery released from GOES-17 during the post-launch testing phase should be considered preliminary and non-operational.
NOAA’s operational geostationary constellation—GOES-16, operating as GOES-East, GOES-15, operating as GOES-West and GOES-14, operating as the on-orbit spare—is healthy and monitoring weather across the nation each day.
Note: This is preliminary, non-operational data as GOES-17 undergoes on-orbit testing.
NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission.
National Oceanic and Atmospheric Administration (NOAA)
National Aeronautics and Space Administration (NASA)
Credit: NOAA/NASA
Release Date: May 31, 2018
#NASA #NOAA #Earth #Science #Satellite #Weather #Meteorology #GOES17 #ABI #WesternHemisphere #NorthAmerica #SouthAmerica #EarthObservation #RemoteSensing #Goddard #Kennedy #KSC #LockheedMartin #UnitedStates #STEM #Education
The Alps | International Space Station
Cosmonaut Anton Shkaplerov: "The Alps are the highest and most extensive mountain range system that lies entirely in Europe, stretching approximately 1,200 km across eight countries: France, Switzerland, Italy, Monaco, Liechtenstein, Austria, Germany and Slovenia."
Learn more:
https://en.wikipedia.org/wiki/Alps
Credit: Cosmonaut Anton Shkaplerov
Release Date: May 30, 2018
#NASA #Roscosmos #Space #ISS #Earth #Science #Alps #Mountains #France #Switzerland #Italy #Monaco #Liechtenstein #Austria #Germany #Slovenia #Europe #Russia #Россия #Роскосмос #Photography #STEM #Education
#OrbitalPerspective #OverviewEffect
Learn more:
https://en.wikipedia.org/wiki/Alps
Credit: Cosmonaut Anton Shkaplerov
Release Date: May 30, 2018
#NASA #Roscosmos #Space #ISS #Earth #Science #Alps #Mountains #France #Switzerland #Italy #Monaco #Liechtenstein #Austria #Germany #Slovenia #Europe #Russia #Россия #Роскосмос #Photography #STEM #Education
#OrbitalPerspective #OverviewEffect
Strait of Gibraltar | International Space Station
U.S. Astronaut Ricky Arnold: "The Strait of Gibraltar between Spain and Morocco. Hercules completed his 10th labor here. I’d prefer to sit in a café along the shore."
The Strait of Gibraltar is a narrow strait that connects the Atlantic Ocean to the Mediterranean Sea and separates Gibraltar and Peninsular Spain in Europe from Morocco and Ceuta (Spain) in Africa. The name comes from the Rock of Gibraltar, which in turn originates from the Arabic Jebel Tariq (meaning "Tariq's mountain") named after Tariq ibn Ziyad. It is also known as the Straits of Gibraltar, the Gut of Gibraltar (although this is mostly archaic), STROG (Strait Of Gibraltar) in naval use, and in the ancient world as the "Pillars of Hercules" (Ancient Greek: αἱ Ἡράκλειοι στῆλαι).
Europe and Africa are separated by 7.7 nautical miles (14.3 km; 8.9 mi) of ocean at the strait's narrowest point. The Strait's depth ranges between 300 and 900 meters (160 and 490 fathoms; 980 and 2,950 ft) which possibly interacted with the lower mean sea level of the last major glaciation 20,000 years ago. (Source: Wikipedia)
Credit: NASA Astronaut Ricky Arnold
Release Date: May 30, 2018
#NASA #Space #ISS #Science #Earth #Strait #Gibraltar #Spain #España #Morocco #المَغرِب #Africa #Europe #Mediterranean #Sea #Astronaut #RickyArnold #Human #Spaceflight #Spacecraft #UnitedStates #Photography #History #STEM #Education #International #OrbitalPerspective #OverviewEffect
The Strait of Gibraltar is a narrow strait that connects the Atlantic Ocean to the Mediterranean Sea and separates Gibraltar and Peninsular Spain in Europe from Morocco and Ceuta (Spain) in Africa. The name comes from the Rock of Gibraltar, which in turn originates from the Arabic Jebel Tariq (meaning "Tariq's mountain") named after Tariq ibn Ziyad. It is also known as the Straits of Gibraltar, the Gut of Gibraltar (although this is mostly archaic), STROG (Strait Of Gibraltar) in naval use, and in the ancient world as the "Pillars of Hercules" (Ancient Greek: αἱ Ἡράκλειοι στῆλαι).
Europe and Africa are separated by 7.7 nautical miles (14.3 km; 8.9 mi) of ocean at the strait's narrowest point. The Strait's depth ranges between 300 and 900 meters (160 and 490 fathoms; 980 and 2,950 ft) which possibly interacted with the lower mean sea level of the last major glaciation 20,000 years ago. (Source: Wikipedia)
Credit: NASA Astronaut Ricky Arnold
Release Date: May 30, 2018
#NASA #Space #ISS #Science #Earth #Strait #Gibraltar #Spain #España #Morocco #المَغرِب #Africa #Europe #Mediterranean #Sea #Astronaut #RickyArnold #Human #Spaceflight #Spacecraft #UnitedStates #Photography #History #STEM #Education #International #OrbitalPerspective #OverviewEffect
Wednesday, May 30, 2018
Canadarm2 | International Space Station
The Canadian Robotic Arm
Location: Approximately 400 km above Earth
Canadarm2 is a 17 meter-long robotic arm that assembled the International Space Station (ISS) while in space. It is routinely used to move supplies, equipment and even astronauts. As well as supporting the Station's maintenance and upkeep, it is responsible for performing "cosmic catches," the capturing and docking of unpiloted spacecraft that carry everything from science payloads to necessities for the 6-person crew on board the ISS.
Built in Brampton, Ontario by MacDonald, Dettwiler and Associates Ltd. (MDA)
Composition: 19 layers of high-strength carbon thermoplastic fibres
Seven degrees of freedom, making it very similar to a human arm:
three joints at the shoulder
one joint at the elbow
three joints at the wrist
Credit: Canadian Space Agency (CSA)
#NASA #Space #Science #Engineering #Robotics #ISS #Canadarm2 #Canada #CSA #SSRMS #MSS #Expedition55 #Astronauts #UnitedStates #STEM #Education #International #Infographic
Canada's Robot "Hand" | International Space Station
Space Station Remote Manipulator System (SSRMS) | Cosmonaut Oleg Artemyev: "The giant 'hand' of our space house or, in other words, SSRMS, which in translation means 'remote manipulator of the space station.' He has a lot of names, but he always has the same role: moving equipment, helping astronauts when working in open space, he also 'catches' the cargo ships Dragon, Cygnus and HTV to the ISS."
The Mobile Servicing System (MSS), is a robotic system on board the International Space Station (ISS). Launched to the ISS in 2001, it plays a key role in station assembly and maintenance; it moves equipment and supplies around the station, supports astronauts working in space, and services instruments and other payloads attached to the ISS and is used for external maintenance. Astronauts receive specialized training to enable them to perform these functions with the various systems of the MSS.
The MSS is composed of three components—the Space Station Remote Manipulator System (SSRMS), known as Canadarm2, the Mobile Remote Servicer Base System (MBS) and the Special Purpose Dexterous Manipulator (SPDM, also known as Dextre or Canada hand). The system can move along rails on the Integrated Truss Structure on top of the US provided Mobile Transporter cart which hosts the MRS Base System. The system's control software was written in the Ada 95 programming language.
The MSS was designed and manufactured by MDA Space Missions (previously called MD Robotics; previously called SPAR Aerospace) for the Canadian Space Agency's contribution to the International Space Station. (Source: Wikipedia)
Learn more:
http://www.asc-csa.gc.ca/eng/iss/canadarm2/data-sheet.asp
Credit: Cosmonaut Oleg Artemyev
Release Date: May 29, 2018
#NASA #Space #Science #Engineering #Robotics #ISS #Canadarm2 #Canada #CSA #SSRMS #MSS #Expedition55 #Cosmonaut #OlegArtemyev #Roscosmos #Роскосмос #Russia #Россия #Astronauts #Photography #UnitedStates #STEM #Education #International #OrbitalPerspective #OverviewEffect
The Mobile Servicing System (MSS), is a robotic system on board the International Space Station (ISS). Launched to the ISS in 2001, it plays a key role in station assembly and maintenance; it moves equipment and supplies around the station, supports astronauts working in space, and services instruments and other payloads attached to the ISS and is used for external maintenance. Astronauts receive specialized training to enable them to perform these functions with the various systems of the MSS.
The MSS is composed of three components—the Space Station Remote Manipulator System (SSRMS), known as Canadarm2, the Mobile Remote Servicer Base System (MBS) and the Special Purpose Dexterous Manipulator (SPDM, also known as Dextre or Canada hand). The system can move along rails on the Integrated Truss Structure on top of the US provided Mobile Transporter cart which hosts the MRS Base System. The system's control software was written in the Ada 95 programming language.
The MSS was designed and manufactured by MDA Space Missions (previously called MD Robotics; previously called SPAR Aerospace) for the Canadian Space Agency's contribution to the International Space Station. (Source: Wikipedia)
Learn more:
http://www.asc-csa.gc.ca/eng/iss/canadarm2/data-sheet.asp
Credit: Cosmonaut Oleg Artemyev
Release Date: May 29, 2018
#NASA #Space #Science #Engineering #Robotics #ISS #Canadarm2 #Canada #CSA #SSRMS #MSS #Expedition55 #Cosmonaut #OlegArtemyev #Roscosmos #Роскосмос #Russia #Россия #Astronauts #Photography #UnitedStates #STEM #Education #International #OrbitalPerspective #OverviewEffect
Tuesday, May 29, 2018
New Zealand | International Space Station
U.S. Astronaut Ricky Arnold: "Magnificent Fiordland National Park on the South Island of New Zealand. Captain James Cook visited here in 1773 in his ship Endeavour. Last time Astronaut Drew Feustel visited the International Space Station, he flew on a ship with the same name."
Fiordland National Park, South Island, New Zealand
www.fiordland.org.nz/about-fiordland/fiordland-national-park/
www.newzealand.com/ca/feature/national-parks-fiordland/
Credit: NASA Astronaut Ricky Arnold
Release Date: May 29, 2018
#NASA #Space #ISS #Science #Earth #NewZealand #Fiordland #NationalPark #Astronaut #RickyArnold #Human #Spaceflight #Spacecraft #UnitedStates #Photography #History #Endeavour #JamesCook #STEM #Education #International #OrbitalPerspective #OverviewEffect
An Eye-Catching Circle of Cloud | NASA Earth
May 29, 2018: While clouds are an important topic of research for climatologists and meteorologists, sometimes the atmosphere churns up peculiar-looking cloud formations that are as notable for aesthetic reasons as they are for scientific ones.
That was the case in May when this circular swirl of clouds drifted over Lake Balkhash in eastern Kazakhstan.
The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite acquired the image at roughly 12:05 local time (06:05 Universal Time) on May 22, 2018, and the MODIS on Aqua acquired a similar image roughly two hours later.
While the MODIS sensors are affixed to polar-orbiting satellites and take an image of each part of Earth once per day, the Indian Space Research Organization operates a geostationary satellite—INSAT-3DR—that keeps its gaze fixed on this part of the world and captures new images every 26 minutes. Imagery from INSAT-3DR helps fill in the gaps before, after, and between the two MODIS images. The INSAT-3DR imagery suggests that a few hours before Terra MODIS acquired the image, the circular feature was linked to an area of convection to the southwest over the western Tien Shan mountains.
Cyclonic wind flow drew the clouds into the circular pattern, which had a radius of roughly 200 kilometers (100 miles)—small enough that meteorologists would classify it as a mesoscale feature. In contrast, synoptic scale features have horizontal lengths greater than 1,000 kilometers, while microscale features have widths less than 1 kilometer.
Image Credit: NASA Earth Observatory image by Joshua Stevens, using MODIS data from LANCE/EOSDIS Rapid Response
Story Credit: Adam Voiland
Instrument(s): Terra - MODIS
#NASA #Earth #Satellite #Science #Atmosphere #Clouds #LakeBalkhash #БалқашКөлі #ОзероБалхаш #Kazakhstan #CentralAsia #Qazaqstan #Terra #MODIS #EarthObservation #RemoteSensing #STEM #Education
That was the case in May when this circular swirl of clouds drifted over Lake Balkhash in eastern Kazakhstan.
The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite acquired the image at roughly 12:05 local time (06:05 Universal Time) on May 22, 2018, and the MODIS on Aqua acquired a similar image roughly two hours later.
While the MODIS sensors are affixed to polar-orbiting satellites and take an image of each part of Earth once per day, the Indian Space Research Organization operates a geostationary satellite—INSAT-3DR—that keeps its gaze fixed on this part of the world and captures new images every 26 minutes. Imagery from INSAT-3DR helps fill in the gaps before, after, and between the two MODIS images. The INSAT-3DR imagery suggests that a few hours before Terra MODIS acquired the image, the circular feature was linked to an area of convection to the southwest over the western Tien Shan mountains.
Cyclonic wind flow drew the clouds into the circular pattern, which had a radius of roughly 200 kilometers (100 miles)—small enough that meteorologists would classify it as a mesoscale feature. In contrast, synoptic scale features have horizontal lengths greater than 1,000 kilometers, while microscale features have widths less than 1 kilometer.
Image Credit: NASA Earth Observatory image by Joshua Stevens, using MODIS data from LANCE/EOSDIS Rapid Response
Story Credit: Adam Voiland
Instrument(s): Terra - MODIS
#NASA #Earth #Satellite #Science #Atmosphere #Clouds #LakeBalkhash #БалқашКөлі #ОзероБалхаш #Kazakhstan #CentralAsia #Qazaqstan #Terra #MODIS #EarthObservation #RemoteSensing #STEM #Education
Monday, May 28, 2018
The Very Large Telescope in action | ESO
Happy 20th Anniversary Very Large Telescope!
One of the Unit Telescopes of European Southern Observatory's Very Large Telescope (VLT) is producing artificial stars in the skies above the Atacama Desert, above the Milky Way. In May 2018, the VLT celebrated 20 years of operations.The Four Laser Guide Star Facility (4LGSF) shines four 22-watt laser beams into the sky to create artificial guide stars by making sodium atoms in the upper atmosphere glow so that they look just like real stars. The artificial stars allow the adaptive optics systems to compensate for the blurring caused by the Earth’s atmosphere and so that the telescope can create sharp images.
Credit: ESO/P. Horálek
Release Date: February 21, 2018
#ESO #Astronomy #Space #Science #MilkyWay #Galaxy #Stars
#Astrophotography #Art #VLT #Telescope #Laser #StarGuide #AdaptiveOptics #Earth #Atmosphere #Chile #CerroAmazones #Atacama #Paranal #Observatory #STEM #Education
Tonight's Sky: June 2018 | HubbleSite
In June, the constellations Boӧtes, Corona Borealis and Draco, and the planets Venus, Jupiter, Mars and Saturn are all visible from the Northern Hemisphere.
“Tonight’s Sky” is produced by HubbleSite.org, online home of the Hubble Space Telescope.
Credit: HubbleSite
Duration: 7 minutes, 47 seconds
Release Date: May 23, 2018
#NASA #Astronomy #Space #Science #Earth #Planets #Venus #Jupiter #Mars #Saturn #Stars #Constellations #SolarSystem #Skywatching #STEM #Education #UnitedStates #NorthernHemisphere #HD #Video
Earthlings United | International Space Station
Credit: Cosmonaut Oleg Artemyev
Release Date: May 25, 2018
#NASA #Space #ISS #Science #Earth #Earthlings #Humanity #Expedition55 #Cosmonaut #OlegArtemyev #Roscosmos #Роскосмос #Russia #Россия #Astronauts #Photography #UnitedStates #STEM #Education #International #OrbitalPerspective #OverviewEffect
Release Date: May 25, 2018
#NASA #Space #ISS #Science #Earth #Earthlings #Humanity #Expedition55 #Cosmonaut #OlegArtemyev #Roscosmos #Роскосмос #Russia #Россия #Astronauts #Photography #UnitedStates #STEM #Education #International #OrbitalPerspective #OverviewEffect
A green cosmic arc | Hubble
This NASA/ESA Hubble Space Telescope image shows a cluster of hundreds of galaxies located about 7.5 billion light-years from Earth. The brightest galaxy within this cluster named SDSS J1156+1911 and known as the Brightest Cluster Galaxy (BCG), is visible in the lower middle of the frame. It was discovered by the Sloan Giant Arcs Survey which studied data maps covering huge parts of the sky from the Sloan Digital Sky Survey: it found more than 70 galaxies that look to be significantly affected by a cosmic phenomenon known as gravitational lensing.
Gravitational lensing is one of the predictions of Albert Einstein's General Theory of Relativity. The mass contained within a galaxy is so immense that it can actually wrap and bend the very fabric of its surroundings (known as spacetime), forcing the light to travel along curved paths. As a result, the image of a more distant galaxy appears distorted and amplified to an observer, as the light from it has been bent around the intervening galaxy. This effect can be very useful in astronomy, allowing astronomers to see galaxies that are either obscured or too distant for us to be otherwise detected by our current instruments.
Galaxy clusters are giant structures containing hundreds to thousands of galaxies with masses of about over one million billion times the mass of the Sun! SDSS J1156+1911 is only roughly 600 billion times the mass of the Sun, making it less massive than the average galaxy. However, it is massive enough to produce the fuzzy greenish streak seen just below the brightest galaxy—the lensed image of a more distant galaxy.
Credit: ESA/Hubble & NASA
Acknowledgement: Judy Schmidt (Geckzilla)
Release Date: May 28, 2018
#NASA #Hubble #Astronomy #Science #Space #Galaxy #Cluster #SDSSJ11561911 #BrightestClusterGalaxy #BCG #Arc #GravitationalLensing #Stars #Galaxies #Cosmos #Universe #Telescope #ESA #STScI #STEM #Education
Gravitational lensing is one of the predictions of Albert Einstein's General Theory of Relativity. The mass contained within a galaxy is so immense that it can actually wrap and bend the very fabric of its surroundings (known as spacetime), forcing the light to travel along curved paths. As a result, the image of a more distant galaxy appears distorted and amplified to an observer, as the light from it has been bent around the intervening galaxy. This effect can be very useful in astronomy, allowing astronomers to see galaxies that are either obscured or too distant for us to be otherwise detected by our current instruments.
Galaxy clusters are giant structures containing hundreds to thousands of galaxies with masses of about over one million billion times the mass of the Sun! SDSS J1156+1911 is only roughly 600 billion times the mass of the Sun, making it less massive than the average galaxy. However, it is massive enough to produce the fuzzy greenish streak seen just below the brightest galaxy—the lensed image of a more distant galaxy.
Credit: ESA/Hubble & NASA
Acknowledgement: Judy Schmidt (Geckzilla)
Release Date: May 28, 2018
#NASA #Hubble #Astronomy #Science #Space #Galaxy #Cluster #SDSSJ11561911 #BrightestClusterGalaxy #BCG #Arc #GravitationalLensing #Stars #Galaxies #Cosmos #Universe #Telescope #ESA #STScI #STEM #Education
A Hidden Galactic Core: NGC 5643 | ESO
This is the center of a galaxy named NGC 5643. This galaxy is located 55 million light-years from Earth in the constellation of Lupus (The Wolf), and is known as a Seyfert galaxy. Seyfert galaxies have very luminous centers—thought to be powered by material being accreted onto a supermassive black hole lurking within—that can also be shrouded and obscured by clouds of dust and intergalactic material.
As a result, it can be difficult to observe the active center of a Seyfert galaxy. NGC 5643 poses a further challenge; it is viewed at a high inclination, making it even trickier to view its inner workings. However, scientists have used the Atacama Large Millimeter/submillimeter Array (ALMA) together with archival data from the Multi Unit Spectroscopic Explorer (MUSE) instrument on the European Southern Observatory's Very Large Telescope to reveal this view of NGC 5643—complete with energetic outflowing ionized gas pouring out into space.
These impressive outflows stretch out on either side of the galaxy, and are caused by matter being ejected from the accretion disc of the supermassive black hole at NGC 5643’s core. Combined, the ALMA and VLT data show the galaxy’s central region to have two distinct components: a spiraling, rotating disc (visible in red) consisting of cold molecular gas traced by carbon monoxide, and the outflowing gas, traced by ionized oxygen and hydrogen (in blue-orange hues) perpendicular to the inner nuclear disc.
Credit: ESO/A. Alonso-Herrero et al.; ALMA (ESO/NAOJ/NRAO)
Release Date: May 28, 2018
#ESO #Astronomy #Space #Science #Galaxy #NGC5643 #Lupus #Seyfert #BlackHole #Cosmos #Universe #ALMA #MUSE #Europe #STEM #Education
Sunday, May 27, 2018
Alan Bean, Apollo Moonwalker & Artist, Dies at 86
NASA remembers Apollo 12 astronaut Alan Bean, who walked on the Moon in 1969, commanded the second Skylab crew in 1973 and went on in retirement to paint the remarkable worlds and sights he had seen like no other artist.
Learn more about his life at: www.nasa.gov/feature/alan-bean
NASA | May 26, 2018: HOUSTON, Texas—Apollo and Skylab astronaut Alan Bean, the fourth human to walk on the moon and an accomplished artist, has died. Bean, 86, died on Saturday, May 26, at Houston Methodist Hospital in Houston, Texas. His death followed his suddenly falling ill while on travel in Fort Wayne, Indiana two weeks before.
“Alan was the strongest and kindest man I ever knew. He was the love of my life and I miss him dearly,” said Leslie Bean, Alan Bean’s wife of 40 years. “A native Texan, Alan died peacefully in Houston surrounded by those who loved him.”
A test pilot in the U.S. Navy, Bean was one of 14 trainees selected by NASA for its third group of astronauts in October 1963. He flew twice into space, first as the lunar module pilot on Apollo 12, the second moon landing mission, in November 1969, and then as commander of the second crewed flight to the United States’ first space station, Skylab, in July 1973.
“Alan and I have been best friends for 55 years—ever since the day we became astronauts,” said Walt Cunningham, who flew on Apollo 7. “When I became head of the Skylab Branch of the Astronaut Office, we worked together and Alan eventually commanded the second Skylab mission.”
“We have never lived more than a couple of miles apart, even after we left NASA. And for years, Alan and I never missed a month where we did not have a cheeseburger together at Miller’s Café in Houston. We are accustomed to losing friends in our business but this is a tough one,” said Cunningham.
On Nov. 19, 1969, Bean, together with Apollo 12 commander Charles “Pete” Conrad, landed on the Ocean of Storms and became the fourth human to walk on the moon. During two moonwalks Bean helped deploy several surface experiments and installed the first nuclear-powered generator station on the moon to provide the power source. He and Conrad inspected a robotic Surveyor spacecraft and collected 75 pounds (34 kilograms) of rocks and lunar soil for study back on Earth.
“Alan and Pete were extremely engaged in the planning for their exploration of the Surveyor III landing site in the Ocean of Storms and, particularly, in the enhanced field training activity that came with the success of Apollo 11. This commitment paid off with Alan's and Pete's collection of a fantastic suite of lunar samples, a scientific gift that keeps on giving today and in the future,” said Harrison Schmitt, Apollo 17 lunar module pilot and the only geologist to walk on the moon. “Their description of bright green concentrations of olivine (peridot) as ‘ginger ale bottle glass,’ however, gave geologists in Mission Control all a big laugh, as we knew exactly what they had discovered.”
“When Alan's third career as the artist of Apollo moved forward, he would call me to ask about some detail about lunar soil, color or equipment he wanted to have represented exactly in a painting. Other times, he wanted to discuss items in the description he was writing to go with a painting. His enthusiasm about space and art never waned. Alan Bean is one of the great renaissance men of his generation—engineer, fighter pilot, astronaut and artist,” said Schmitt.
Four years after Apollo 12, Bean commanded the second crew to live and work on board the Skylab orbital workshop. During the then-record-setting 59-day, 24.4 million-mile flight, Bean and his two crewmates generated 18 miles of computer tape during surveys of Earth’s resources and 76,000 photographs of the Sun to help scientists better understand its effects on the solar system.
In total, Bean logged 69 days, 15 hours and 45 minutes in space, including 31 hours and 31 minutes on the moon’s surface.
Bean retired from the Navy in 1975 and NASA in 1981. In the four decades since, he devoted his time to creating an artistic record of humanity’s first exploration of another world. His Apollo-themed paintings featured canvases textured with lunar boot prints and were made using acrylics embedded with small pieces of his moon dust-stained mission patches.
“Alan Bean was the most extraordinary person I ever met,” said astronaut Mike Massimino, who flew on two space shuttle missions to service the Hubble Space Telescope. “He was a one of a kind combination of technical achievement as an astronaut and artistic achievement as a painter.”
“But what was truly extraordinary was his deep caring for others and his willingness to inspire and teach by sharing his personal journey so openly. Anyone who had the opportunity to know Alan was a better person for it, and we were better astronauts by following his example. I am so grateful he was my mentor and friend, and I will miss him terribly. He was a great man and this is a great loss,” Massimino said.
Born March 15, 1932, in Wheeler, Texas, Bean received a Bachelor of Science degree in aeronautical engineering from the University of Texas in 1955. He attended the Navy Test Pilot School and accumulated more than 5,500 hours of flying time in 27 different types of aircraft.
He is survived by his wife Leslie, a sister Paula Stott, and two children from a prior marriage, a daughter Amy Sue and son Clay.
Alan Bean's Wikipedia page:
https://en.wikipedia.org/wiki/Alan_Bean
Credit: National Aeronautics and Space Administration (NASA)
Duration: 3 minutes
Release Date: May 26, 2018
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