Friday, May 17, 2024

A Science Mission to Better Understand Earth’s Polar Regions | NASA/JPL

A Science Mission to Better Understand Earth’s Polar Regions | NASA/JPL

NASA’s PREFIRE mission aims to improve global climate change predictions by expanding our understanding of heat loss at the polar regions. The Polar Radiant Energy in the Far-InfraRed Experiment (PREFIRE) will send two shoebox-size satellites into space to study the Arctic and Antarctic. They will be the first to systematically measure heat in the form of far-infrared radiation emitted from those regions. 

Earth absorbs much of the Sun’s energy at the tropics. Weather and ocean currents then move that heat toward the poles, which help regulate Earth’s climate by radiating that heat back into space. However, the Arctic is warming about three times faster than anywhere else on Earth. This is leading to increased ice sheet melt and sea level rise in coastal communities. The data from PREFIRE will help scientists better understand how Earth’s polar regions respond to climate change and what that might mean for the future.

For more information: https://science.nasa.gov/mission/prefire 


Credit: NASA/JPL-Caltech/University of Wisconsin

Duration: 3 minutes, 38 seconds

Release Date: May 17, 2024

#NASA #Space #Science #Satellites #Earth #Planet #EarthScience #PolarRegions #Arctic #Antarctic
#Meltwater #PREFIREMission #Infrared #Atmosphere #Oceans #Land #Climate #ClimateChange #GreenhouseGases #GlobalWarming #GlobalHeating #EarthSystemObservatory #JPL #Caltech #UnitedStates #STEM #Education #HD #Video

Gravitationally Lensed Supernova Refsdal | Hubble’s Inside the Image

Gravitationally Lensed Supernova Refsdal | Hubble’s Inside the Image

NASA's Hubble Space Telescope has taken an image of a lensing galaxy cluster that caught the same supernova, nicknamed Refsdal, exploding four different times!

In this video, Dr. Brian Welch explains this breathtaking image and how important Hubble is to exploring the mysteries of the universe.

For more information, visit https://nasa.gov/hubble


Credit: NASA's Goddard Space Flight Center (GSFC)

Producer, Director & Editor: James Leigh

Director of Photography: James Ball

Executive Producers: James Leigh & Matthew Duncan

Production & Post: Origin Films 

Video Credits:

Hubble Space Telescope Animation:

ESA/Hubble - M. Kornmesser & L. L. Christensen

 Animations of Galaxy Cluster With Gravitational Lensing & Lensed Supernova: 

ESA/Hubble - L. Calçada

Artist’s Impression of Gravitational Lensing:

ESA/Hubble - M. Kornmesser

Animations of Lensed Supernova Detections: 

NASA & ESA

Release Date: May 17, 2024


#NASA #ESA #Hubble #Astronomy #Space #Science #Galaxies #Galaxy #MACSJ114962223 #Supernovae #SupernovaRefsdal #Supernova #Leo #Constellation #Cosmos #Universe #HST #HubbleSpaceTelescope #GSFC #STScI #UnitedStates #Europe #STEM #Education #HD #Video

NASA's Space to Ground: The ISS Toolbox | Week of May 17, 2024

NASA's Space to Ground: The ISS Toolbox | Week of May 17, 2024

NASA's Space to Ground is your weekly update on what's happening aboard the International Space Station (ISS). On Earth, NASA, Boeing, and the United Launch Alliance (ULA) teams continue working toward the agency’s Boeing Crew Flight Test to the International Space Station. The teams are targeting launch no earlier than 4:43 p.m. EDT Tuesday, May 21, 2024.

Follow Expedition 71 Updates: 


Expedition 71 Crew
Station Commander: Oleg Kononenko (Russia)
Roscosmos (Russia): Nikolai Chub, Alexander Grebenkin (Russia)
NASA: Tracy Dyson, Matthew Dominick, Mike Barrett, Jeanette Epps

An international partnership of space agencies provides and operates the elements of the International Space Station (ISS). The principals are the space agencies of the United States, Russia, Europe, Japan, and Canada. The ISS has been the most politically complex space exploration program ever undertaken.

Learn more about NASA’s Commercial Crew Program at: 

Learn more about the important research being operated on Station:

For more information about STEM on Station:
Science, Technology, Engineering, Math (STEM)

Video Credit: NASA's Johnson Space Center (JSC)

Duration: 4 minutes, 33 seconds

Release Date: May 17, 2024


#NASA #Space #Earth #ISS #Tools #Boeing #Starliner #CST100 #AtlasVRocket #CommercialCrewProgram #CFT #Astronauts #SuniWilliams #BarryWilmore #HumanSpaceflight #Science #SpaceTechnology #Engineering #LaunchAmerica #NASAKennedy #CapeCanaveral #Florida #UnitedStates #Cosmonauts #Russia #Expedition71 #STEM #Education #HD #Video

Thursday, May 16, 2024

Astronauts Practice Simulated Moonwalks in Arizona Desert | NASA Artemis Program

Astronauts Practice Simulated Moonwalks in Arizona Desert | NASA Artemis Program

NASA astronaut Andre Douglas raises an American flag as NASA astronaut Kate Rubins looks on during their first simulated moonwalk in a week-long field test consisting of four simulated moonwalks and six advanced technology runs in the San Francisco Volcanic Field in Northern Arizona

NASA astronaut Andre Douglas collects soil samples during the first in a series of four simulated moonwalks in Arizona.
NASA astronauts Kate Rubins (left) and Andre Douglas (right) congratulate each other after the completion of the first simulated moonwalk in a week-long field test

NASA astronaut Kate Rubins observes a geology sample she collected during a simulated moonwalk.
NASA astronaut Andre Douglas takes a picture of the lunar-like landscape during a simulated moonwalk
NASA astronauts Kate Rubins and Andre Douglas push a tool cart loaded with lunar tools through the San Francisco Volcanic Field north of Flagstaff, Arizona
The Joint Extravehicular Activity and Human Surface Mobility Test Team and NASA astronauts Kate Rubins and Andre Douglas before the start of a week-long field test consisting of four simulated moonwalks

To prepare for exploring the Moon during NASA’s Artemis campaign, the agency is conducting a week-long field test in the lunar-like landscape of San Francisco Volcanic Field near Flagstaff, Arizona to practice moonwalk scenarios.

NASA astronauts Kate Rubins and Andre Douglas are serving as the crewmembers and wearing mockup spacesuit systems as they traverse through the desert, completing a variety of technology demonstrations, hardware checkouts and Artemis science-related operations. 

During the test, two integrated teams will work together as they practice end-to-end lunar operations. The field team consists of astronauts, NASA engineers, and field experts in the Arizona desert conducting the simulated moonwalks, while a team of flight controllers and scientists at NASA’s Johnson Space Center in Houston monitor and guide their activities.

“Field tests play a critical role in helping us test all of the systems, hardware, and technology we’ll need to conduct successful lunar operations during Artemis missions,” said Barbara Janoiko, director for the field test at Johnson. “Our engineering and science teams have worked together seamlessly to ensure we are prepared every step of the way for when astronauts step foot on the Moon again.”   

The test consists of four simulated moonwalks that follow operations planned for Artemis III and beyond, as well as six advanced technology runs. During the advanced runs, teams will demonstrate technology that may be used for future Artemis missions, such as display and navigation data stream capabilities in the form of a heads-up display using augmented reality or lighting beacons that could help guide crew back to the lander. 

Ahead of the field test, the science team at Johnson that was competitively selected and tasked with developing the science objectives for the field test, followed a planning process designed for Artemis missions. Their preparation included generating geologic maps, a list of science questions, and prioritized moonwalk locations for both the primary and back-up “landing sites” for the test. 

“During Artemis III, the astronauts will be our science operators on the lunar surface with an entire science team supporting them from here on Earth,” said Cherie Achilles, science officer for the test at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. “This simulation gives us an opportunity to practice conducting geology from afar in real time.” 

The test will evaluate gaps and challenges associated with lunar South Pole operations, including data collection and communications between the flight control team and science team in Houston for rapid decision-making protocols. 

At the conclusion of each simulated moonwalk, the science team, flight control team, crewmembers, and field experts will come together to discuss and record lessons learned. NASA will take these lessons and apply them to operations for NASA’s Artemis missions, commercial vendor development, and other technology development. 

This field test is the fifth in the series conducted by the Joint Extravehicular Activity and Human Surface Mobility Test Team led out of Johnson. This test expands on previous field tests the team has performed and is the highest fidelity Artemis moonwalk mission simulation to date. 

NASA uses field tests to simulate missions to prepare for deep space destinations. The Arizona desert has been a training ground for lunar exploration since the Apollo era because of the many similarities to the lunar terrain, including craters, faults and volcanic features. 

Through Artemis, NASA will land the first woman, the first person of color, and its first international partner astronaut on the Moon, paving the way for long-term lunar exploration and serving as a steppingstone for astronaut missions to Mars. 

Learn more about NASA’s Extravehicular Activity and Human Surface Mobility Program:

https://www.nasa.gov/extravehicular-activity-and-human-surface-mobility/


Image Credit: NASA's Johnson Space Center (JSC)/Josh Valcarcel

Release Date: May 14, 2024


#NASA #Space #Moon #ArtemisProgram #ArtemisIII #Astronauts #HumanSpaceflight #JETT #JETT5 #Moonwalks #MoonwalkSimulation #Training #MoonToMars #Science #Engineering #SpaceTechnology #SpaceExploration #SolarSystem #GSFC #JSC #Arizona #UnitedStates #STEM #Education

Africa, Arabian Peninsula, and Tarim Basin | China Space Station

Africa, Arabian Peninsula, and Tarim Basin | China Space Station

In this video, China's Tiangong space station passes over Africa and the Arabian Peninsula before arriving at the Tarim Basin in China. 

Let's explore our world together!

The three Chinese astronauts Ye Guangfu, Li Cong, and Li Guangsu were sent to the orbiting Tiangong space station for a six-month mission on April 25, 2024.

During their stay in space, the Shenzhou-18 astronauts will carry out more than 90 experiments, two to three extravehicular activities (EVAs), and implement six cargo outbound deliveries via the station's cargo airlock module. 

The trio will witness the arrival of the Tianzhou-8 cargo craft and later welcome the Shenzhou-19 crewed spaceship to the space station.

Shenzhou-18 Crew:

Ye Guangfu (叶光富, commander)

Li Cong (李聪, mission specialist)

Li Guangsu (李广苏, mission specialist)


Video Credit: China National Space Administration (CNSA) Watcher

Duration: 5 minutes

Release Date: May 15, 2024


#NASA #Space #Science #Earth #Africa #ArabianPeninsula #TarimBasin #China #中国 #Shenzhou18 #神舟十八 #CrewSpacecraft #Taikonauts #Astronauts #YeGuangfu #LiCong #LiGuangsu #CSS #ChinaSpaceStation #中国空间站 #TiangongSpaceStation #SpaceLaboratory #CMSA #国家航天局 #HumanSpaceflight #STEM #Education #HD #Video

Panning over Lenticular Galaxy NGC 4753 in Virgo | Hubble

Panning over Lenticular Galaxy NGC 4753 in Virgo | Hubble


In this new image from the NASA/European Space Agency's Hubble Space Telescope is a nearly edge-on view of the lenticular galaxy NGC 4753. These galaxies have an elliptical shape and ill-defined spiral arms.

This image is the object's sharpest view to date, showcasing Hubble’s resolving power and ability to reveal complex dust structures. NGC 4753 resides around 60 million light-years from Earth in the constellation Virgo. It was discovered by the astronomer William Herschel in 1784. It is a member of the NGC 4753 Group of galaxies within the Virgo II Cloud. It is made up of roughly 100 galaxies and galaxy clusters.

This galaxy is believed to be the result of a galactic merger with a nearby dwarf galaxy roughly 1.3 billion years ago. NGC 4753’s distinct dust lanes around its nucleus are believed to have been accreted from this merger event. 

It is now believed that most of the mass in the galaxy lies in a slightly flattened spherical halo of dark matter. Dark matter is a form of matter that cannot currently be observed directly, but is thought to comprise about 85% of all matter in the Universe. It is referred to as ‘dark’ because it does not appear to interact with the electromagnetic field, and therefore does not seem to emit, reflect or refract light.

This object is also of scientific interest to test  theories of formation of lenticular galaxies, given its low-density environment and complex structure. Furthermore, this galaxy has been host to two known Type Ia supernovae. These types of supernovae are extremely important as they are all caused by exploding white dwarfs which have companion stars, and always peak at the same brightness—5 billion times brighter than the Sun. Knowing the true brightness of these events, and comparing this with their apparent brightness, gives astronomers a unique chance to measure distances in the Universe.

Image Description: Lenticular galaxy NGC 4753 is featured with a bright white core and surrounding defined dust lanes around its nucleus, that predominantly appear dark brown in color. A variety of faint stars fill the background of the image.


Image Credit: ESA/Hubble & NASA, L. Kelsey, N. Bartmann (ESA/Hubble)

Duration: 30 seconds

Release Date: May 16, 2024

 

#NASA #ESA #Hubble #Astronomy #Space #Science #Galaxies #Galaxy #NGC4753 #LenticularGalaxy #GalacticMergers #DarkMatter #VirgoIICloud #Virgo #Constellation #Cosmos #Universe #HST #HubbleSpaceTelescope #GSFC #STScI #UnitedStates #Europe #STEM #Education #HD #Video

Pan of Region around ZS7 Galaxy System Black Hole Merger | Webb Telescope

Pan of Region around ZS7 Galaxy System Black Hole Merger | Webb Telescope

This image shows the environment of the galaxy system ZS7 from the JWST PRIMER program (PI: J. Dunlop) as seen by Webb's NIRCam instrument. New research using the NIRSpec instrument on the NASA/European Space Agency/Canadian Space Agency James Webb Space Telescope has determined the system to be evidence of an ongoing merger of two galaxies and their massive black holes when the Universe was only 740 million years old. This marks the most distant detection of a black hole merger ever obtained and the first time that this phenomenon has been detected so early in the Universe. 

The team has found evidence for very dense gas with fast motions in the vicinity of the black hole, as well as hot and highly ionised gas illuminated by the energetic radiation typically produced by black holes in their accretion episodes. Webb also allowed the team to spatially separate the two black holes and determined that one of the two black holes has a mass that is 50 million times the mass of the Sun. The mass of the other black hole is likely similar, although it is harder to measure because this second black hole is buried in dense gas.


Video Credit:

ESA/Webb, NASA, CSA, J. Dunlop, D. Magee, P. G. Pérez-González, H. Übler, R. Maiolino, et. al, N. Bartmann (ESA/Webb)

Duration: 30 seconds

Release Date: May 15, 2024


#NASA #Space #Astronomy #Science #Stars #Galaxies #BlackHoles #ZS7 #BlackHole #GalacticMerger #Cosmos #Universe #JWST #Infrared #SpaceTelescopes #ESA #CSA #GSFC #STScI #UnitedStates #STEM #Education #HD #Video

Most Distant Black Hole Merger to Date Detected | James Webb Space Telescope

Most Distant Black Hole Merger to Date Detected | James Webb Space Telescope 

This image shows the environment of the galaxy system ZS7 from the JWST PRIMER program (PI: J. Dunlop) as seen by Webb's NIRCam instrument.
This image shows the location of the galaxy system ZS7 from the JWST PRIMER program (PI: J. Dunlop).

An international team of astronomers have used the NASA/European Space Agency/Canadian Space Agency James Webb Space Telescope to find evidence for an ongoing merger of two galaxies and their massive black holes when the Universe was only 740 million years old. This marks the most distant detection of a black hole merger ever obtained and the first time that this phenomenon has been detected so early in the Universe.

Astronomers have found supermassive black holes with masses of millions to billions times that of the Sun in most massive galaxies in the local Universe, including in our Milky Way galaxy. These black holes have likely had a major impact on the evolution of the galaxies they reside in. However, scientists still do not fully understand how these objects grew to become so massive. The finding of gargantuan black holes already in place in the first billion years after the Big Bang indicates that such growth must have happened very rapidly, and very early. Now, the James Webb Space Telescope is shedding new light on the growth of black holes in the early Universe.

The new Webb observations have provided evidence for an ongoing merger of two galaxies and their massive black holes when the Universe was just 740 million years old. The system is known as ZS7.

Massive black holes that are actively accreting matter have distinctive spectrographic features that allow astronomers to identify them. For very distant galaxies, like those in this study, these signatures are inaccessible from the ground and can only be seen with Webb. 

“We found evidence for very dense gas with fast motions in the vicinity of the black hole, as well as hot and highly ionised gas illuminated by the energetic radiation typically produced by black holes in their accretion episodes,” explained lead author Hannah Übler of the University of Cambridge in the United Kingdom. “Thanks to the unprecedented sharpness of its imaging capabilities, Webb also allowed our team to spatially separate the two black holes.”

The team found that one of the two black holes has a mass that is 50 million times the mass of the Sun. “The mass of the other black hole is likely similar, although it is much harder to measure because this second black hole is buried in dense gas,” explained team member Roberto Maiolino of the University of Cambridge and University College London in the United Kingdom.

“Our findings suggest that merging is an important route through which black holes can rapidly grow, even at cosmic dawn,” explained Übler. “Together with other Webb findings of active, massive black holes in the distant Universe, our results also show that massive black holes have been shaping the evolution of galaxies from the very beginning.”

"The stellar mass of the system we studied is similar to that of our neighbor the Large Magellanic Cloud," shared team member Pablo G. Pérez-González of the Centro de Astrobiología (CAB), CSIC/INTA, in Spain. "We can try to imagine how the evolution of merging galaxies could be affected if each galaxy had one super massive black hole as large or larger than the one we have in the Milky Way". 

The team also notes that once the two black holes merge, they will also generate gravitational waves. Gravitational waves are invisible ripples in the fabric of spacetime. Events like this will be detectable with the next generation of gravitational wave observatories, such as the upcoming Laser Interferometer Space Antenna (LISA) mission that was recently approved by the European Space Agency. It will be the first space-based observatory dedicated to studying gravitational waves.

“Webb’s results are telling us that lighter systems detectable by LISA should be far more frequent than previously assumed,” shared LISA Lead Project Scientist Nora Luetzgendorf of the European Space Agency in the Netherlands. “It will most likely make us adjust our models for LISA rates in this mass range. This is just the tip of the iceberg.”

This discovery was from observations made as part of the Galaxy Assembly with NIRSpec Integral Field Spectroscopy program. The team has recently been awarded a new Large Program in Webb’s Cycle 3 of observations, to study in detail the relationship between massive black holes and their host galaxies in the first billion years. An important component of this program will be to systematically search for and characterise black hole mergers. This effort will determine the rate that black hole merging occurs at early cosmic epochs and will assess the role of merging in the early growth of black holes and the rate at which gravitational waves are produced from the dawn of time.

These results have been published in the Monthly Notices of the Royal Astronomical Society.


Image Credit: ESA/Webb, NASA, CSA, J. Dunlop, D. Magee, P. G. Pérez-González, H. Übler, R. Maiolino, et. al

Release Date: May 16, 2024


#NASA #Space #Astronomy #Science #Stars #Galaxies #BlackHoles #ZS7 #BlackHole #GalacticMerger #Cosmos #Universe #JWST #Infrared #SpaceTelescopes #ESA #CSA #GSFC #STScI #UnitedStates #STEM #Education

Wednesday, May 15, 2024

NASA's Europa Clipper Science Mission: Why Explore Jupiter’s Ocean Moon?

NASA's Europa Clipper Science Mission: Why Explore Jupiter’s Ocean Moon?

Everywhere there is water on Earth, there is life. Does that hold true elsewhere in our solar system? NASA’s Europa Clipper mission will investigate Jupiter’s icy moon Europa. With its subsurface ocean, Europa is one of the most promising places in our solar system to find environments capable of supporting life.

While Europa Clipper is not a life-detection mission, it will be the first to conduct a detailed survey of this icy moon to answer questions about Europa’s potential habitability and composition. The mission’s main goals are to determine the thickness of Europa’s icy shell; confirm the presence of an ocean; investigate the make-up of that ocean; and characterize the geology of the surface. The spacecraft will orbit Jupiter and make approximately 50 flybys of Europa. It is equipped with an extensive suite of instruments that will work in sync to gather measurements and high-resolution images. 

Europa Clipper is expected to launch in October 2024 from NASA’s Kennedy Space Center in Florida. It will arrive at the Jupiter system in 2030. 

For more information on the mission, visit: https://europa.nasa.gov/


Credit: NASA/JPL-Caltech/APL

Duration: 5 minutes

Release Date: May 15, 2024


#NASA #Astronomy #Space #Science #Jupiter #Europa #Moon #Ocean #Astrobiology #Biosignatures #Habitability #Radiation #EuropaClipper #Spacecraft #SolarSystem #SpaceExploration #APL #MSFC #JPL #Caltech #California #UnitedStates #STEM #Education #HD #Video

Sun Releases Largest Flare in Nearly a Decade | NASA Goddard

Sun Releases Largest Flare in Nearly a Decade | NASA Goddard

On May 14, 2024, the Sun emitted a strong solar flare. This solar flare is the largest of Solar Cycle 25 and is classified as an X8.7 flare. X-class denotes the most intense flares, while the number provides more information about its strength.

A solar flare is an intense burst of radiation, or light, on the Sun. Flares are our solar system’s most powerful explosive events. Light only takes about 8 minutes to travel from the Sun to Earth, so that’s how long it would take the energy from a flare to reach our planet. Stronger solar flares—those rated class M5 or above—can have impacts on technology that depends on Earth’s ionosphere (our electrically charged upper atmosphere), like high-frequency radio used for navigation and GPS.

NASA’s Solar Dynamics Observatory (SDO) captured these images of the flare, which peaked at 12:51 p.m. ET on May 14. The X8.7 flare appears on the lower right edge of the Sun. (A small eruption appears afterward in the upper left.) SDO sees the Sun in more than 10 distinct wavelengths of light, showing solar material at different temperatures. Different wavelengths are shown in this video to highlight different features of the flare.


Credit: NASA's Goddard Space Flight Center/Scientific Visualization Studio

Scott Wiessinger (MORI Associates): Producer

Abbey Interrante (ADNET Systems, Inc.): Writer

Tom Bridgman (Global Science and Technology, Inc.): Visualizer

Duration: 1 minute, 12 seconds

Release Date: May 15, 2024


#NASA #Astronomy #Space #Science #Earth #Moon #SpaceWeather #Sun #Star #Solar #SolarFlares #Ultraviolet #Plasma #MagneticField #Heliophysics #Physics #Spacecraft #Satellites #ElectricalGrids #SDO #SolarSystem #NASAGoddard #GSFC #UnitedStates #STEM #Education #HD #Video

Jupiter’s Tiny Moon Amalthea | NASA Juno Mission

Jupiter’s Tiny Moon Amalthea | NASA Juno Mission


NASA’s Juno mission captured these views of Jupiter during its 59th close flyby of the giant planet on March 7, 2024. They provide a good look at Jupiter’s colorful belts and swirling storms, including the Great Red Spot. Close examination reveals something more: two glimpses of the tiny moon Amalthea.

With a radius of just 52 miles (84 kilometers), Amalthea has a potato-like shape, lacking the mass to pull itself into a sphere. In 2000, NASA’s Galileo spacecraft revealed surface features, including impact craters, hills, and valleys. Amalthea circles Jupiter inside Io’s orbit, which is the innermost of the planet’s four largest moons, taking 0.498 Earth days to complete one orbit.

Amalthea is the reddest object in the solar system, and observations indicate it gives out more heat than it receives from the Sun. This may be because, as it orbits within Jupiter’s powerful magnetic field, electric currents are induced in the moon’s core. Alternatively, the heat could be from tidal stresses caused by Jupiter’s gravity.

At the time that the first of these two images was taken, the Juno spacecraft was about 165,000 miles (265,000 kilometers) above Jupiter’s cloud tops, at a latitude of about 5 degrees north of the equator.

Citizen scientist Gerald Eichstädt made these images using raw data from the JunoCam instrument, applying processing techniques to enhance the clarity of the images.

More information about Juno is at:

https://www.nasa.gov/juno and https://missionjuno.swri.edu 

For more about this finding and other science results, see:

https://www.missionjuno.swri.edu/science-findings


Image Credits:

Image Data: NASA/JPL-Caltech/SwRI/MSSS

Image Processing: Gerald Eichstädt

Release Date: May 13, 2024


#NASA #Astronomy #Space #Science #Jupiter #Planet #Moons #Amalthea #Moon #JunoMission #JunoSpacecraft #GalileoSpacecraft #SolarSystem #SpaceExploration #JPL #MSFC #SwRI #UnitedStates #CitizenScience #GeraldEichstädt #CitizenScientist #Infographic #STEM #Education

Sun Releases Strong X3.4 Solar Flare | NASA SDO

Sun Releases Strong X3.4 Solar Flare | NASA SDO


The Sun emitted a strong X3.4 solar flare from active region 3664, peaking at 4:37 a.m. ET on May 15, 2024. NASA’s Solar Dynamics Observatory captured an image of the event. It observes the sun continuously.

Image Description: The Sun, shown in teal, against a black background. Swirling across the Sun are many bright teal active regions. On the right, a bright flash of teal and white light, forming an "X" shape, can be seen against the Sun and the black background.

The image shows a subset of extreme ultraviolet light that highlights the extremely hot material in flares. It is colorized in teal. 

Solar flares are powerful bursts of energy. Flares and solar eruptions can impact radio communications, electric power grids, navigation signals, and pose risks to spacecraft and astronauts.

This flare is classified as an X3.4 flare. X-class denotes the most intense flares, while the number provides more information about its strength.

To see how such space weather may affect Earth, please visit NOAA’s Space Weather Prediction Center https://spaceweather.gov/, the U.S. government’s official source for space weather forecasts, watches, warnings, and alerts. NASA works as a research arm of the nation’s space weather effort. 

NASA observes the Sun and our space environment constantly with a fleet of spacecraft that study everything from the Sun’s activity to the solar atmosphere, and to the particles and magnetic fields in the space surrounding Earth.


Image Credit: NASA's Goddard Space Flight Center (GSFC)

Image Date: May 15, 2024


#NASA #Astronomy #Space #Science #Earth #Moon #SpaceWeather #Sun #Star #Solar #SolarFlares #Ultraviolet #Plasma #MagneticField #Astrophysics #Heliophysics #Physics #Spacecraft #Satellites #ElectricalGrids #SDO #SolarSystem #NASAGoddard #GSFC #UnitedStates #STEM #Education

Young Triple-star System: HP Tau, HP Tau G2 & HP Tau G3 | Hubble

Young Triple-star System: HP Tau, HP Tau G2 & HP Tau G3 | Hubble

Looking like a glittering cosmic geode, a trio of dazzling stars blaze from the hollowed-out cavity of a reflection nebula in this new image from NASA’s Hubble Space Telescope. The triple-star system is made up of the variable star HP Tau, HP Tau G2, and HP Tau G3. HP Tau is known as a T Tauri star, a type of young variable star that has not begun nuclear fusion yet but is beginning to evolve into a hydrogen-fueled star similar to our Sun. T Tauri stars tend to be younger than 10 million years old―in comparison, our Sun is around 4.6 billion years old―and are often found still swaddled in the clouds of dust and gas they were formed from.

As with all variable stars, HP Tau’s brightness changes over time. T Tauri stars are known to have periodic and random fluctuations in brightness. The random variations may be due to the chaotic nature of a developing young star, such as instabilities in the accretion disk of dust and gas around the star, material from that disk falling onto the star and being consumed, and flares on the star’s surface. The periodic changes may be due to giant sunspots rotating in and out of view.

Curving around the stars, a cloud of gas and dust shines with their reflected light. Reflection nebulae do not emit visible light of their own, but shine as the light from nearby stars bounces off the gas and dust, like fog illuminated by the glow of a car’s headlights.

HP Tau is located approximately 550 light-years away in the constellation Taurus. Hubble studied HP Tau as part of an investigation into protoplanetary disks, the disks of material around stars that coalesce into planets over millions of years.


Image Credit: NASA, European Space Agency (ESA), G. Duchene (Universite de Grenoble I); Image Processing: Gladys Kober (NASA/Catholic University of America)

Release Date: May 15, 2024


#NASA #Hubble #Astronomy #Space #Science #Stars #VariableStar #TTauriStar #HPTau #HPTauG2 #HPTauG3 #ReflectionNebula #Taurus #Constellation #MilkyWayGalaxy #Cosmos #Universe #HST #HubbleSpaceTelescope #ESA #Europe #GSFC #STScI #UnitedStates #STEM #Education

Tuesday, May 14, 2024

Solar X8.7 Flare Erupts from Sun: Largest of Current Solar Cycle | NASA SDO

Solar X8.7 Flare Erupts from Sun: Largest of Current Cycle | NASA SDO


The Sun emitted a strong solar flare from active region 3664, peaking at 12:51 p.m. ET on May 14, 2024. NASA’s Solar Dynamics Observatory (SDO) captured an image of the event. It observes the sun constantly. This image shows a subset of extreme ultraviolet light that highlights the extremely hot material in flares. It is colorized in red and yellow.

Solar flares are powerful bursts of energy. Flares and solar eruptions can impact radio communications, electric power grids, navigation signals, and pose risks to spacecraft and astronauts.

This flare is classified as an X8.7 flare. X-class denotes the most intense flares, while the number provides more information about its strength.

Image Description: The red and yellow Sun against a black background. The Sun is primarily red with several bright yellow active regions swirling across its surface. On the right, a bright yellow burst is seen cascading off the Sun against the black background.

To see how such space weather may affect Earth, please visit NOAA’s Space Weather Prediction Center https://spaceweather.gov/, the U.S. government’s official source for space weather forecasts, watches, warnings, and alerts. 

NASA works as a research arm of the nation’s space weather effort. NASA observes the Sun and our space environment constantly with a fleet of spacecraft that study everything from the Sun’s activity to the solar atmosphere, and to the particles and magnetic fields in the space surrounding Earth.


Image Credit: NASA's Goddard Space Flight Center (GSFC)

Image Date: May 14, 2024


#NASA #Astronomy #Space #Science #Earth #Moon #SpaceWeather #Sun #Star #Solar #SolarFlares #Ultraviolet #Plasma #MagneticField #Astrophysics #Heliophysics #Physics #Spacecraft #Satellites #ElectricalGrids #SDO #SolarSystem #NASAGoddard #GSFC #UnitedStates #STEM #Education

New Views of The Horsehead Nebula | James Webb Space Telescope

New Views of The Horsehead Nebula | James Webb Space Telescope

Astronomers have used NASA’s James Webb Space Telescope to survey the Horsehead Nebula in incredible detail. The Horsehead Nebula is an iconic area in the constellation Orion where massive stars are being born. Combining views from many telescopes allows astronomers to understand the inner workings of this nebula like never before. From Euclid, to Hubble, and now Webb, we can learn more about our universe thanks to these amazing machines. 

Read more about Webb's observations of the Horsehead Nebula: 

https://science.nasa.gov/missions/webb/webb-captures-top-of-iconic-horsehead-nebula-in-unprecedented-detail/

For more information about Webb, visit https://webb.nasa.gov/


Video Credit: NASA's Goddard Space Flight Center (GSFC)

Paul Morris: Lead Producer 

Liz Landau: Script

Isabelle Yan: Producer

Image Credits:

NASA/Webb, CSA, ESA, ESA/Euclid, Euclid Consortium, ESO, Digitized Sky Survey 2, N. Bartmann (ESA/Webb), E. Slawik, N. Risinger, D. De Martin, M. Zamani (ESA/Webb), K. Misselt (University of Arizona) and A. Abergel (IAS/University Paris-Saclay, CNRS)

Image of Williamina Fleming as part of the Public Domain

Image of Photographic Plate courtesy of Harvard College Observatory, Astronomical Photographic Glass Plate Collection    

Duration: 2 minutes, 52 seconds

Release Date: May 14, 2024


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Aurora Generator: Active Solar Region AR 3664 at Sunset in Rome, Italy

Aurora Generator: Active Solar Region AR 3664 at Sunset in Rome, Italy

A distant Sun is seen over water and between foreground trees. On the lower part of the setting Sun is the gigantic active region AR 3664 visible by its dark sunspots a few days ago from Civitavecchia, Rome, Italy. Active region AR 3664 is larger than the Earth. It is so big you could actually see it on the Sun's surface without magnification. It contains powerful and tangled magnetic fields, as well as numerous dark sunspots. Labelled AR 3664, it developed into one of the most energetic areas seen on the Sun in recent years, unleashing a series of explosions that led to a surge of energetic particles striking the Earth. This created beautiful auroras. It may continue. 

The Sun rotates (once every 27 days). AR 3664 is now rotating away from the Earth, although the region may survive long enough to come around again. Active regions on the Sun, like AR 3664, can be quite dangerous. However, this region's coronal mass ejections (CMEs) have not created, as of yet, much damage to Earth-orbiting satellites or to electrical grids on the Earth's surface.  

This composite image includes a very short exposure taken of just the Sun's surface. It mimics what was actually visible. 


Image Credit & Copyright: Marco Meniero

Marco's website: https://www.meniero.it

Release Date: May 13, 2024


#NASA #Astronomy #Space #Science #Star #Sun #ActiveRegion #AR3664 #SolarWind #MagneticLoops #SpaceWeather #GeomagneticStorm #Planets #Earth #Aurorae #Aurora #SolarSystem #Astrophotography #MarcoMeniero #Astrophotographer #Heliophysics #Physics #Astrophysics #STEM #Education #APoD