Comet C/2023 & Orbital Sunrise | International Space Station
Release Date: Dec. 21, 2025
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Comet C/2023 & Orbital Sunrise | International Space Station
The Moon+Reflection+Zodiacal Light at Orbital Sunrise | International Space Station
What a beautiful Christmas from Earth orbit!
It is rare to capture four such visual elements all at once!
Expedition 74 Flight Engineer and Japan Aerospace Exploration Agency (JAXA) astronaut Kimiya Yui: "It's a view full of beautiful collaborations and performances . . . the Moon and its reflection & zodiacal light."
What's that strangely diffused white light?
Dust orbiting the Sun. At certain times of the year, a band of sun-reflecting dust from the inner Solar System appears prominently just after sunset—or just before sunrise—and is called zodiacal light. Although the origin of this dust is still being researched, a leading hypothesis holds that zodiacal dust originates mostly from faint Jupiter-family comets and that it slowly spirals into the Sun.
Astronauts aboard the International Space Station (ISS) experience 15 to 16 sunrises and sunsets each day due to its rapid orbit around the Earth. This occurs approximately every 45 minutes, allowing them to witness this phenomenon multiple times throughout the day.
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The Swan Nebula: A Perfect Storm of Turbulent Gases | Hubble Space Telescope
Merry Christmas! This year, NASA has a cosmic swan 🦢 for you.
This nebula, Messier 17 (also nicknamed the Swan or Omega Nebula), was imaged by the Hubble Space Telescope. This painting-like image shows vast clouds of gas and dust illuminated by the intense radiation from young stars. The entire nebula covers about 40 light-years in total. It is a popular target for amateur astronomers. They can obtain good quality images using small telescopes.
Like the fury of a raging sea, this image from the NASA/European Space Agency Hubble Space Telescope shows a bubbly ocean of glowing hydrogen, oxygen, and sulphur gas in the extremely massive and luminous molecular nebula Messier 17. This Hubble photograph captures a small region within Messier 17 (M17), a hotbed of star formation. M17, also known as the Omega or Swan Nebula, is located about 5500 light-years away in the Sagittarius constellation. The colors in the image represent a variety of gases. Red represents sulphur; green, hydrogen; and blue, oxygen.
The wave-like patterns of gas have been sculpted and illuminated by a torrent of ultraviolet radiation from young, massive stars that lie outside the picture to the upper left. The glow of these patterns highlights the 3D structure of the gases. The ultraviolet radiation is carving and heating the surfaces of cold hydrogen gas clouds. The warmed surfaces glow orange and red in this image. The intense heat and pressure cause material to stream away from the surface, creating the glowing veil of even hotter green-colored gas that masks background structures. The pressure on the tips of the waves may trigger new star formation within them. The image, roughly three light-years across, was taken on May 29-30, 1999, with Hubble's Wide Field Planetary Camera 2.
Get Your Free NASA Artemis II Moon Mission Personalized Boarding Pass!
Four astronauts will fly around the Moon and back on Artemis II, the first crewed flight under NASA's Artemis campaign. NASA astronauts Reid Wiseman, Victor Glover, and Christina Koch, as well as Canadian Space Agency (CSA) astronaut Jeremy Hansen will be the first humans aboard the Space Launch System (SLS) rocket, Orion spacecraft, and supporting ground systems as the crew ventures into the harsh environment of space. This flight is another step toward crewed missions to the lunar surface and helping the agency prepare for future astronaut missions to Mars.
Submitted names will be included on a secure digital (SD) card that will fly inside the Orion spacecraft when the Artemis II mission launches in early 2026.
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NASA Artemis I Moon Tree's Second Christmas🎄| Marshall Space Flight Center
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Winter Solstice Aurora: View from Finland
Astrophotographer Sebastian Sainio: "The elevated solar wind put on a good show December 21st to 22nd. I took a self-portrait of myself standing on a quiet road admiring the auroras at around 1am local time."
The winter solstice marks the shortest day and longest night of the year, occurring around December 21 or 22 in the Northern Hemisphere and June 20 or 21 in the Southern Hemisphere.
Vera C. Rubin Observatory 2025 Holiday Wishes!
Happy Holidays from the United States National Science Foundation and Department of Energy (NSF-DOE) Vera C. Rubin Observatory in Chile!
Tarjeta de fiestas 2025 del Observatorio Rubin
¡Felices fiestas del Observatorio Rubin!
The Rubin Observatory is packed with new technology. The Simonyi Survey Telescope’s drive system, rigid design, and compact shape give it incredible speed, forming the streaks of light showcased in this image. Thanks to these features, the telescope can be ready for its next image in only five seconds—faster than any other telescope of its size. The LSST Camera, constructed by DOE’s SLAC National Accelerator Laboratory is the world’s largest digital camera. The camera is roughly the size of a small car and weighs almost 6600 lbs (3000 kg). Its size and design allow it to view vast areas of the sky, capturing 45 times the area of the full Moon in the sky with each exposure. Together, the innovative technologies in the Simonyi Survey Telescope and the LSST Camera is expected to make many discoveries.
Rubin's sensitive camera captures variations so subtle that our eyes can barely detect them when looking at the images. Rubin’s wide view and fast survey speed will give us data on far more of these stars than ever before—even those way out in the outskirts of the Milky Way—giving us a much clearer picture of what our Galaxy looks like.
The Vera C. Rubin Observatory is located on the summit of Cerro Pachón in the Coquimbo Region, Chile, at an elevation of 2,700 meters above sea level.
Credit: NSF–DOE Vera C. Rubin Observatory/NOIRLab/SLAC/AURA
Release Date: Dec. 19, 2025
Mysterious Little Red Dots of the Early Universe | James Webb Space Telescope
What are these little red dots (LRDs)? No one knows. Discovered only last year, hundreds of LRDs have now been found by the James Webb Space Telescope in the early universe. Although extremely faint, LRDs are now frequently identified in deep observations made for other purposes. A wide-ranging debate is raging about what LRDs may be and what importance they may have. Possible origin hypotheses include accreting supermassive black holes inside clouds of gas and dust, bursts of star formation in young dust-reddened galaxies, and dark matter powered gas clouds. The highlighted images show six nearly featureless LRDs listed under the JWST program that found them, and z, a distance indicator called cosmological redshift. Additionally, searches are underway in our nearby universe to try to find whatever previous LRDs might have become today.
A panel of six images shows a red dot in the center of each image. The instrument that took the image is listed on each image, along with a z number that is the cosmological redshift.
Merry Christmas to Planet Earth! | International Space Station
Expedition 74 Flight Engineer and Japan Aerospace Exploration Agency (JAXA) astronaut Kimiya Yui: "Hello, everyone! While staying up late, I filmed a time-lapse of the journey from the African continent to Europe. Please enjoy it together with the collaboration between 'Kibo,' adorned in Christmas colors, and HTV-X-kun. It kinda feels like a video present from HTV-X Santa lol."
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Merry Christmas from NASA's Kennedy Space Center!
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NASA Europa Clipper's Journey to Explore Jupiter's Moon
🛰️NASA's Europa Clipper, supported by Aerospace experts and validated through Aerospace testbeds, has embarked on a groundbreaking journey to explore Jupiter's moon Europa to investigate its icy shell, hidden ocean and potential for life. The spacecraft will enter the Jovian system in 2030 and conduct roughly 50 close flybys of Europa.
Learn how Aerospace's contributions are supporting the mission's voyage: https://lnkd.in/erwhDDMJ
Europa Clipper’s three main science objectives are to determine the thickness of the moon’s icy shell and its interactions with the ocean below, to investigate its composition, and to characterize its geology. The mission’s detailed exploration of Europa will help scientists better understand the astrobiological potential for habitable worlds beyond our planet.
Managed by Caltech in Pasadena, California, JPL leads the development of the Europa Clipper mission in partnership with the Johns Hopkins Applied Physics Laboratory in Laurel, Maryland, for NASA’s Science Mission Directorate in Washington. APL designed the main spacecraft body in collaboration with JPL and NASA’s Goddard Space Flight Center in Greenbelt, Maryland, NASA’s Marshall Space Flight Center in Huntsville, Alabama, and Langley Research Center in Hampton, Virginia. The Planetary Missions Program Office at Marshall executes program management of the Europa Clipper mission. NASA’s Launch Services Program, based at Kennedy, managed the launch service for the Europa Clipper spacecraft.
Saguaros and The Milky Way Galaxy: View from Arizona
The Milky Way galaxy arcs above two saguaro cactuses in this image captured near Tucson, Arizona.
The saguaro (Carnegiea gigantea) is a tree-like cactus species in the monotypic genus Carnegiea that can grow to be over 12 meters (40 feet) tall. It is native to the Sonoran Desert in Arizona, the Mexican state of Sonora, and the Whipple Mountains and Imperial County areas of California. Saguaro typically grow at elevations ranging from sea level to 4,500', although they may be found at up to 5,000'. The saguaro blossom is the state wildflower of Arizona. Its scientific name is given in honor of Andrew Carnegie. In 1933, Saguaro National Park, near Tucson, Arizona, was designated to help protect this species and its habitat.
Arizona is a landlocked state in the Southwestern region of the United States, sharing the Four Corners region of the western United States with Colorado, New Mexico, and Utah. It also borders Nevada to the northwest and California to the west, and shares an international border with the Mexican states of Sonora and Baja California to the south and southwest.
NASA’s Nancy Grace Roman Space Telescope: Widening Our Gaze | NASA Goddard
The NASA Astrophysics fleet of spacecraft has an impressive range of capabilities. What is the next step in exploring the cosmos? The Nancy Grace Roman Space Telescope, NASA’s upcoming flagship mission, will take Hubble’s resolution and widen its infrared view to more than 100 times the coverage in every single image. Roman is a survey telescope that can peer through the Milky Way’s obscuring dust, and see faint, distant galaxies. Roman’s rigid design allows it to scan large regions of sky very quickly. Hubble would take 1,000 years to observe what Roman can see in one. Roman’s 18 4k x 4k detectors create 300-megapixel images covering an area of sky slightly larger than the full Moon. Roman will also look at the same regions of space repeatedly over time, allowing astronomers to see changes and observe temporary events like supernovae. Roman’s surveys of deep space and the center of our Milky Way galaxy will find thousands of new exoplanets, survey millions of galaxies, help us understand dark matter and dark energy, and learn more about the evolution of the universe.
Learn more about Roman and the discoveries it will enable: https://www.stsci.edu/roman
Large Circumstellar Disc IRAS 23077+6707 in Cepheus | Hubble
Large Protoplanetary Disk Nicknamed “Dracula’s Chivito” | Hubble Space Telescope
Located roughly 1,000 light-years from Earth, this protoplanetary disk, nicknamed “Dracula’s Chivito,” spans nearly 400 billion miles, 40 times the diameter of the solar system to the outer edge of the Kuiper belt of cometary bodies.
Nicknamed “Dracula’s Chivito,” the disk’s playful name comes from its discoverers, one from Transylvania and another from Uruguay, where the national dish is a sandwich called a chivito.
Thanks to Hubble, we now can see this disk’s surprising scale and detail. Dracula’s Chivito is not just the largest protoplanetary disk ever imaged, it is also a window into how planets are born and how systems like ours began.
Learn more: https://science.nasa.gov/missions/hubble/nasas-hubble-reveals-largest-found-chaotic-birthplace-of-planets/
NASA's SpaceX Crew-12 Mission | International Space Station
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