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Flyby of Dinkinesh Reveals Binary Asteroid System | NASA's Lucy Spacecraft
On Nov. 1, 2023, NASA's Lucy spacecraft flew by the small Main Belt asteroid Dinkinesh (previously known as 1999 VD57) and revealed that it is actually a binary asteroid system.
“Dinkinesh really did live up to its name; this is marvelous,” said Hal Levison, referring to the meaning of Dinkinesh in the Amharic language, “marvelous.” Levison is principal investigator for Lucy from the Boulder, Colorado, branch of the San-Antonio-based Southwest Research Institute. “When Lucy was originally selected for flight, we planned to fly by seven asteroids. With the addition of Dinkinesh, two Trojan moons, and now this satellite, we’ve turned it up to 11.”
This asteroid flyby was added to Lucy’s list of targets in January 2023. The primary purpose of the Dinkinesh encounter was to test the spacecraft’s Terminal Tracking System. This will keep Lucy's instruments pointing at the asteroid as it flies by at 10,000 miles per hour. The Lucy mission’s record-breaking tour will explore at least ten small solar system bodies.
The Lucy spacecraft will now head back towards Earth for its second gravity assist in December 2024. This assist will send the spacecraft to explore the Jupiter Trojan asteroids.
NASA's "Espacio a Tierra" | Un paseo en el espacio: 27 de octubre de 2023
Espacio a Tierra, la versión en español de las cápsulas Space to Ground de la NASA, te informa semanalmente de lo que está sucediendo en la Estación Espacial Internacional.
The Sounds of a New Planetary System | NASA Ames Data Sonification
This is the first planetary system where each planet is bathed in more radiant heat from their host star per area than any in our solar system.
This sonification turns the orbits of a new seven-planet system, discovered by NASA’s retired Kepler space telescope, into sound. It begins at the center of the system with the innermost orbit and builds toward the outermost, introducing each orbit with a new sound that plays once per rotation around the central Sun-like star. It then focuses on two specific orbits in resonance. This creates a beating sound with the inner rotating twice in the same period as the outer rotates three times. Next, only the three outer-most planets are singled out as an orbital resonance chain before blending all seven together again.
The Kepler space telescope was NASA’s first planet-hunting mission, assigned to search a portion of the Milky Way galaxy for Earth-sized planets orbiting stars outside our solar system. During nine years in deep space Kepler, and its second act, the extended mission dubbed K2, showed our galaxy contains billions of hidden "exoplanets," many of which could be promising places for life. They proved that our night sky is filled with more planets even than stars—knowledge that revolutionizes understanding of our place in the cosmos.
Kepler has opened our eyes to the diversity of planets that exist in our galaxy. Analysis of Kepler’s discoveries concludes that 20 to 50 percent of the stars visible in the night sky are likely to have small, possibly rocky, planets similar in size to Earth, and located within the habitable zone of their parent stars. That means they are located at distances from their parent stars where liquid water—a vital ingredient to life as we know it—might pool on the planet surface.
Sierra Space Introduces Reusable Dream Chaser Spaceplane "Tenacity"
The First Spaceplane in the New Dream Chaser Fleet: Sierra Space has proudly revealed a product of passionate determination, innovations and relentless commitment—the remarkable Dream Chaser spaceplane. The first vehicle "Tenacity," is complete and will ship to NASA’s Neil Armstrong Test Facility in Ohio for environmental testing in the coming weeks.
It is the world’s sole commercial runway-capable spaceplane. Supported by a substantial contract from NASA to resupply the International Space Station, Dream Chaser is poised to lead the way in democratizing access to space, forging a path towards shared space exploration and international cooperation.
Dream Chaser Tenacity Spaceplane: “Today we have arrived at a profound milestone in both our company’s journey and our industry’s future—one that has been years in the making and is shaped by audacious dreaming and tenacious doing,” said Sierra Space CEO Tom Vice.
“I am reminded of a comment made by Steve Jobs that every once in a while, a revolutionary product comes along that changes everything. I think Dream Chaser is that product. This breakthrough shifts paradigms and redefines space travel. The Dream Chaser is not just a product; it’s a testament to human spirit, determination and the relentless pursuit of what lies beyond.”
Sierra Space team members gathered to celebrate this milestone moment on October 30th, at the company’s Louisville, CO, production facility.
Unlocking Opportunities for Space Access
The versatile Dream Chaser spaceplane fleet is meticulously designed to facilitate the transportation of cargo and, in the future, crew to low-Earth orbit (LEO). This multi-mission platform offers customization options to cater to the needs of both domestic and international customers, further enhancing its role in global space operations. Under NASA’s Commercial Resupply Services 2 (CRS-2) contract, Dream Chaser has been selected to provide essential cargo delivery, return, and disposal services for the International Space Station.
Dream Chaser showcases its mettle by safely withstanding temperatures exceeding 3,000 degrees during re-entry, all while being cool to the touch mere minutes after landing. The incorporation of the most advanced autonomous flight system, ensuring a minimum 15-mission lifespan, marks a monumental leap forward in space transportation.
Years of dedication have resulted in the creation of a new propulsion and oxidizer-fuel system, a more eco-friendly and responsible approach to space travel.
The inaugural Dream Chaser spaceplane, “Tenacity,” is poised to embark on its initial seven cargo missions to and from the International Space Station, carrying essential supplies such as food, water and scientific experiments. One of Dream Chaser’s groundbreaking features is its capability to safely return critical cargo to Earth at fewer than 1.5g’s, ensuring the preservation of invaluable payloads. This innovative spaceplane offers unparalleled flexibility and can land at any compatible commercial runway worldwide, just like a narrow body commercial airliner.
Setting New Standards for Reusability and Adaptability
Dream Chaser’s high reusability and adaptability set it apart, making it an optimal choice for a wide range of applications while ensuring rapid turnaround times to meet various LEO requirements. The launch for this extraordinary journey is schedule to occur from NASA’s Kennedy Space Center. Sierra Space’s launch provider, United Launch Alliance (ULA), will carry Dream Chaser into orbit on the second Vulcan Centaur rocket. Tenacity’s maiden resupply mission will culminate with the vehicle’s return, landing at the historic NASA Space Shuttle Landing Facility.
As “Tenacity” embarks on its maiden mission, it sets the stage for a brighter future of space transportation and cooperation, bringing humanity’s dreams of space exploration one step closer to reality.
NASA's Jasmin Moghbeli & Loral O’Hara on Spacewalk: Replay | International Space Station
[Spacewalk begins at 1 hour, 41 minute mark] NASA astronauts Jasmin Moghbeli and Loral O’Hara concluded their spacewalk today at 2:47 p.m. EST after 6 hours and 42 minutes. NASA astronauts Jasmin Moghbeli and Loral O’Hara began a spacewalk at 8:05 a.m. EDT today to conduct science research and station maintenance. They teamed up for their first spacewalks!
Moghbeli, designated extravehicular crew member 1 (EV1), was wearing a suit with red stripes. O’Hara, designated extravehicular crew member 2 (EV 2), was in an unmarked suit.
Moghbeli and O’Hara were able to complete one of the spacewalk’s two major objectives, replacing one of the 12 trundle bearing assemblies on the port solar alpha rotary joint, which allows the arrays to track the Sun and generate electricity to power the station. Mission Control told the station crew that the solar array is functioning well after the bearing replacement. Spacewalkers also removed a handling bar fixture to prepare for future installation of a roll-out solar array and properly configured a cable that was previously interfering with an external camera.
The astronauts had planned to remove and stow a communications electronics box called the Radio Frequency Group, but there was not enough time during the spacewalk to complete the work. The duo lifted multilayer insulation to make a better assessment of how to approach the job before replacing the insulation and deferring the task to a future spacewalk.
During the activity, one tool bag was inadvertently lost. Flight controllers spotted the tool bag using external station cameras. The tools were not needed for the remainder of the spacewalk. Mission Control analyzed the bag’s trajectory and determined that risk of recontacting the station is low and that the onboard crew and space station are safe with no action required.
Moghbeli and O’Hara are in the midst of a science mission living and working aboard the microgravity laboratory to advance scientific knowledge and demonstrate new technologies for future human and robotic exploration missions, including lunar missions through NASA’s Artemis program.
Station Commander: Andreas Mogensen of the European Space Agency (Denmark)
Roscosmos (Russia): Oleg Kononenko, Nikolai Chub, Konstantin Borisov
JAXA: Flight Engineer Satoshi Furukawa (Japan)
NASA: Jasmin Moghbeli, Loral O'Hara (USA)
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.
Panning across Interacting Galaxy Pair Arp-Madore 2339-661 in Tucana | Hubble
A dynamic duo . . . or trio?
This striking image captures the interacting galaxy pair known as Arp-Madore 2339-661, so named because they belong to the Arp-Madore catalogue of peculiar galaxies. However, this particular peculiarity might be even odder than first meets the eye, as there are in fact three galaxies interacting here, not just two.
The two clearly defined galaxies are NGC 7733 (smaller, lower right) and NGC 7734 (larger, upper left). The third galaxy is currently referred to as NGC 7733N, and can actually be spotted in this picture if you look carefully at the upper arm of NGC 7733, where there is a visually notable knot-like structure, glowing with a different color to the arm and obscured by dark dust. This could easily pass as part of NGC 7733, but analysis of the velocities (speed, but also considering direction) involved in the galaxy shows that this knot has a considerable additional redshift, meaning that it is very likely its own entity and not part of NGC 7733. This is actually one of the many challenges that observational astronomers face: working out whether an astronomical object really is just one, or one lying in front of another as seen from Earth’s perspective!
All three galaxies lie quite close to each other, roughly 500 million light-years from Earth in the constellation Tucana, and, as this image shows, they are interacting gravitationally with one another. In fact, some science literature refers to them as a ‘merging group’, meaning that they are on a course to ultimately become a single entity.
Image Description: Two spiral galaxies. Each glows brightly in the center, where a bar stretches from side to side. The upper one is more round and its arms form two thin rings. The lower galaxy is flatter and its arms make one outer ring; a dusty knot atop its upper arm marks out a third object. Gravity is pulling gas and dust together where the galaxies come close. A number of small galaxies surround them on a black background.
Credit: European Space Agency/Hubble & NASA, J. Dalcanton, Dark Energy Survey/DOE/FNAL/NOIRLab/NSF/AURA
The James Webb Space Telescope is the world’s premier space science observatory.
Webb is solving mysteries in our solar system, looking beyond to distant worlds around other stars, and probing the mysterious structures and origins of our universe and our place in it.
Webb is an international program led by NASA with its partners, European Space Agency (ESA) and the Canadian Space Agency (CSA).
Goddard Space Flight Center (GSFC) is "NASA’s premiere space flight complex and home to the nation’s largest organization of scientists, engineers, and technologists who build spacecraft, instruments, and new technology to study Earth, the Sun, our solar system, and the universe."
On Sept. 7, 2023, during its 54th close flyby of Jupiter, NASA’s Juno mission captured this view of an area in the giant planet’s far northern regions called Jet N7. The image shows turbulent clouds and storms along Jupiter’s terminator, the dividing line between the day and night sides of the planet. The low angle of sunlight highlights the complex topography of features in this region, which scientists have studied to better understand the processes playing out in Jupiter’s atmosphere.
As often occurs in views from Juno, Jupiter’s clouds in this picture lend themselves to pareidolia, the effect that causes observers to perceive faces or other patterns in largely random patterns.
Citizen scientist Vladimir Tarasov made this image using raw data from the JunoCam instrument. At the time the raw image was taken, the Juno spacecraft was about 4,800 miles (about 7,700 kilometers) above Jupiter’s cloud tops, at a latitude of about 69 degrees north.
NASA's X-ray Telescopes Reveal the "Bones" of a Ghostly Cosmic Hand
In 1895, Wilhelm Röntgen discovered X-rays and used them to image the bones in his wife's hand, kicking off a revolutionary diagnostic tool for medicine. Now two of NASA’s X-ray space telescopes have combined their imaging powers to unveil the magnetic field “bones” of a remarkable hand-like structure in space. Together, these telescopes reveal the behavior of a dead collapsed star that lives on through plumes of particles of energized matter.
A small, dense object only twelve miles in diameter is responsible for this beautiful X-ray nebula that spans 150 light years. The story begins around 1,500 years ago when a giant star ran out of nuclear fuel to burn. This led to the star collapsing onto itself and forming an incredibly dense object called a neutron star.
Rotating neutron stars with strong magnetic fields are called pulsars. With today’s telescopes, astronomers use them as laboratories for extreme physics, offering high-energy conditions that cannot be replicated on Earth. For example, young pulsars can create jets of matter and antimatter moving away from the poles of the pulsar, along with an intense wind, forming a “pulsar wind nebula”. These are ideal places to study certain questions in physics.
In 2001, NASA’s Chandra X-ray Observatory first observed the pulsar PSR B1509-58 and revealed that its pulsar wind nebula—known as MSH 15-52—randomly resembles a human hand. The pulsar is located at the base of the “palm” of the nebula. Finger-like structures extend to the north, apparently energizing knots of material in this neighboring gas cloud. The transfer of energy from the wind to these knots makes them glow brightly in X-rays (orange and red features to the upper right). The temperature in this region appears to vary in a circular pattern around this ring of emission, suggesting that the pulsar may be precessing like a spinning top and sweeping an energizing beam around the gas in MSH 15-52.
The combination of rapid rotation and ultra-strong magnetic field makes B1509 one of the most powerful electromagnetic generators in the Galaxy. This generator drives an energetic wind of electrons and ions away from the neutron star. As the electrons move through the magnetized nebula, they radiate away their energy and create the elaborate nebula
Astronomers think that B1509 is about 1,700 years old as measured in Earth's time-frame (referring to when events are observable at Earth) and is located about 17,000 light years away. B1509 is spinning completely around almost 7 times every second and is releasing energy into its environment at a prodigious rate—presumably because it has an intense magnetic field at its surface, estimated to be 15 trillion times stronger than the Earth's magnetic field. B1509's nebula is 15 times wider than the Crab Nebula.
Now, NASA’s newest X-ray telescope, the Imaging X-ray Polarimetry Explorer (IXPE), has observed MSH 15-52 for about 17 days, the longest it has looked at any single object since it launched in December 2021.
The IXPE data gives astronomers the first map of the magnetic field in the hand. The charged particles producing the X-rays travel along the magnetic field, determining the basic shape of the nebula, like the bones do in a person’s hand.
These new data are revealing interesting aspects of this cosmic hand that researchers did not know before. By combining the data from these two telescopes, astronomers are learning more not only about MSH 15-52, but also other pulsar wind nebulae in general, with more discoveries yet to come.
China’s Shenzhou-16 Crew Returns to Earth | China Space Station
China’s Shenzhou-16 crew of three returned to Earth on October 31, 2023, after spending five months aboard the Tiangong Space Station. The team handed over the ship’s duties to their successors, the Shenzhou-17 crew that arrived a few days before. The Shenzhou-16 mission reportedly conducted dozens of experiments in space medicine, biotechnology, ecology, fluid physics, and materials science.
The Shenzhou-16 crew spacecraft successfully landed at the Dongfeng landing site, Inner Mongolia Autonomous Region, China, on Oct. 31, 2023, at 00:11 UTC (08:11 China Standard Time). The Shenzhou-16 spacecraft transported the fifth crew of three astronauts, Jing Haipeng (景海鹏, commander), Zhu Yangzhu (朱杨柱) and Gui Haichao (桂海潮), from a long duration mission aboard the China Space Station.
Shenzhou-16 Crew:
Jing Haipeng (Commander)
Zhu Yangzhu (Mission Specialist)
Gui Haichao (Mission Specialist)
Video Credit: China National Space Administration (CNSA)/South China Morning Post (SCMP)
This video tours the Crab Nebula, a supernova remnant that lies 6,500 light-years away in the constellation Taurus. Despite this distance from Earth, the Crab Nebula is a relatively close example of what remains after the explosive death of a massive star.
NASA’s James Webb Space Telescope captures in unprecedented detail the components that comprise the Crab, including the expanding cloud of hot gas, cavernous filaments of dust, and synchrotron emission. The synchrotron emission is the result of the nebula’s pulsar: a rapidly rotating neutron star that is located in the center.
The wind produced by the pulsar shapes the Crab Nebula’s form and pushes fast-moving particles along the magnetic field, forming thin ribbons that flow throughout the nebula’s interior. Toward the nebula’s edges are cavernous filaments of dust and hot gas—now-fractured material that was and continues to be ejected at high speeds. Zooming out reveals the nebula’s unique structure, including areas where the synchrotron emission seems to be pinched.
Webb’s sensitivity, along with the rich data collected by other telescopes, is helping astronomers study this complex and changing scene. This information will lead to an improved understanding of the Crab Nebula’s mysterious origins as well as broaden knowledge about the lives and deaths of stars.
Zoom into The Crab Nebula | James Webb Space Telescope
This video takes the viewer on a cosmic journey to the Crab Nebula. The new image of the object revealed at the end from NASA/European Space Agency/Canadian Space Agency James Webb Space Telescope was captured by the NIRCam (Near-Infrared Camera) and MIRI (Mid-Infrared Instrument) instruments to reveal new details in infrared light.
The NASA/European Space Agency/Canadian Space Agency James Webb Space Telescope has gazed at the Crab Nebula in the search for answers about the supernova remnant’s origins. Webb’s NIRCam (Near-Infrared Camera) and MIRI (Mid-Infrared Instrument) have revealed new details in infrared light.
Similar to the Hubble optical wavelength image released in 2005, with Webb the remnant appears to consist of a crisp, cage-like structure of fluffy red-orange filaments of gas that trace doubly ionized sulphur (sulphur III). Within the remnant’s interior, yellow-white and green fluffy ridges form large-scale loop-like structures, which represent areas where dust particles reside.
The area is composed of translucent, milky material. This material is emitting synchrotron radiation. It is emitted across the electromagnetic spectrum but becomes particularly vibrant thanks to Webb’s sensitivity and spatial resolution. It is generated by particles accelerated to extremely high speeds as they wind around magnetic field lines. The synchrotron radiation can be traced throughout the majority of the Crab Nebula’s interior.
Locate the wisps that follow a ripple-like pattern in the middle. In the center of this ring-like structure is a bright white dot: a rapidly rotating neutron star. Further out from the core, follow the thin white ribbons of the radiation. The curvy wisps are closely grouped together, following different directions that mimic the structure of the pulsar’s magnetic field. Note how certain gas filaments are bluer in color. These areas contain singly ionized iron (iron II).
Image Description: An oval nebula with a complex structure against a black background. On the oval's exterior lie curtains of glowing red and orange fluffy material. Interior to this outer shell lie large-scale loops of mottled filaments of yellow-white and green, studded with clumps and knots. Translucent thin ribbons of smoky white lie within the remnant’s interior, brightest toward its center.
Video Credit: ESA/Webb, NASA, CSA, STScI, KPNO/NOIRLab, ESO, Digitized Sky Survey 2, N. Bartmann (ESA/Webb), N. Risinger, D. De Martin (ESA/Hubble), M. Zamani (ESA/Webb)
Pan of The Crab Nebula | James Webb Space Telescope
The NASA/European Space Agency/Canadian Space Agency James Webb Space Telescope has gazed at the Crab Nebula in the search for answers about the supernova remnant’s origins. Webb’s NIRCam (Near-Infrared Camera) and MIRI (Mid-Infrared Instrument) have revealed new details in infrared light.
Similar to the Hubble optical wavelength image released in 2005, with Webb the remnant appears to consist of a crisp, cage-like structure of fluffy red-orange filaments of gas that trace doubly ionized sulphur (sulphur III). Within the remnant’s interior, yellow-white and green fluffy ridges form large-scale loop-like structures, which represent areas where dust particles reside.
The area is composed of translucent, milky material. This material is emitting synchrotron radiation, which is emitted across the electromagnetic spectrum but becomes particularly vibrant thanks to Webb’s sensitivity and spatial resolution. It is generated by particles accelerated to extremely high speeds as they wind around magnetic field lines. The synchrotron radiation can be traced throughout the majority of the Crab Nebula’s interior.
Locate the wisps that follow a ripple-like pattern in the middle. In the center of this ring-like structure is a bright white dot: a rapidly rotating neutron star. Further out from the core, follow the thin white ribbons of the radiation. The curvy wisps are closely grouped together, following different directions that mimic the structure of the pulsar’s magnetic field. Note how certain gas filaments are bluer in color. These areas contain singly ionized iron (iron II).
Image Description: An oval nebula with a complex structure against a black background. On the oval's exterior lie curtains of glowing red and orange fluffy material. Interior to this outer shell lie large-scale loops of mottled filaments of yellow-white and green, studded with clumps and knots. Translucent thin ribbons of smoky white lie within the remnant’s interior, brightest toward its center.
Credit: NASA, European Space Agency/Canadian Space Agency, STScI, T. Temim (Princeton University), N. Bartmann (ESA/Webb)
The NASA/European Space Agency/Canadian Space Agency James Webb Space Telescope has gazed at the Crab Nebula in the search for answers about the supernova remnant’s origins. Webb’s NIRCam (Near-Infrared Camera) and MIRI (Mid-Infrared Instrument) have revealed new details in infrared light.
Similar to the Hubble optical wavelength image released in 2005, with Webb the remnant appears to consist of a crisp, cage-like structure of fluffy red-orange filaments of gas that trace doubly ionized sulphur (sulphur III). Within the remnant’s interior, yellow-white and green fluffy ridges form large-scale loop-like structures, which represent areas where dust particles reside.
The area is composed of translucent, milky material. This material is emitting synchrotron radiation, which is emitted across the electromagnetic spectrum but becomes particularly vibrant thanks to Webb’s sensitivity and spatial resolution. It is generated by particles accelerated to extremely high speeds as they wind around magnetic field lines. The synchrotron radiation can be traced throughout the majority of the Crab Nebula’s interior.
Locate the wisps that follow a ripple-like pattern in the middle. In the center of this ring-like structure is a bright white dot: a rapidly rotating neutron star. Further out from the core, follow the thin white ribbons of the radiation. The curvy wisps are closely grouped together, following different directions that mimic the structure of the pulsar’s magnetic field. Note how certain gas filaments are bluer in color. These areas contain singly ionized iron (iron II).
Image Description: An oval nebula with a complex structure against a black background. On the oval's exterior lie curtains of glowing red and orange fluffy material. Interior to this outer shell lie large-scale loops of mottled filaments of yellow-white and green, studded with clumps and knots. Translucent thin ribbons of smoky white lie within the remnant’s interior, brightest toward its center.
Credit: NASA, ESA, CSA, STScI, T. Temim (Princeton University)
Panning over Arp 107 in Leo Minor: A Galactic Collision in Progress | Hubble
This Hubble image—taken using NASA/European Space Agency Hubble Space Telescope’s Advanced Camera for Surveys (ACS)—shows Arp 107, a celestial object that comprises a pair of galaxies in the midst of a collision. The larger galaxy (in the left of this image) is an extremely energetic galaxy type known as a Seyfert galaxy, which house active galactic nuclei at their cores. Seyfert galaxies are notable because despite the immense brightness of the active core, radiation from the entire galaxy can be observed. This is evident in this image, where the spiraling whorls of the whole galaxy are readily visible. The smaller companion is connected to the larger by a tenuous-seeming ‘bridge’, composed of dust and gas. The colliding galactic duo lie about 465 million light-years from Earth.
Image Description: A pair of merging galaxies. The galaxy on the left has a large, single spiral arm curving out from the core and around to below it, with very visible glowing dust and gas. The right galaxy has a bright core but only a bit of very faint material. A broad curtain of gas connects the two galaxies’ cores and hangs beneath them. A few small stars and galaxies are scattered around the black background.
Arp 107 is part of a catalogue of 338 galaxies known as the Atlas of Peculiar Galaxies, which was compiled in 1966 by Halton Arp. It was observed by Hubble as part of an observing program that specifically sought to fill in an observational ‘gap’, by taking limited observations of members of the Arp catalogue. Part of the intention of the observing program was to provide the public with images of these spectacular and not-easily-defined galaxies, and as such, it has provided a rich source for Hubble Pictures of the Week. In fact, several recent releases, including this one and this one, have made use of observations from the same observing program.
Credit: European Space Agency/Hubble & NASA, J. Dalcanton
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