Monday, December 01, 2025

What's Up for December 2025: Skywatching Tips from NASA | JPL

What's Up for December 2025: Skywatching Tips from NASA | JPL


Here are examples of skywatching highlights for the northern hemisphere in December 2025:

The 3I/ATLAS comet makes its closest approach to Earth, the Geminid meteor shower sparkles across the sky, and the Moon and Jupiter get close for a conjunction. 

0:00 Intro

0:13 3I/ATLAS

1:24 Geminid meteor shower

1:57 Moon + Jupiter conjunction

2:31 December Moon phases


Video Credit: NASA's Jet Propulsion Laboratory (JPL)
Duration: 3 minutes
Release Date: Dec. 1, 2025


#NASA #Astronomy #Space #Science #Comets #InterstellarComets #Comet3IATLAS #Planets #Jupiter #Earth #MeteorShowers #Geminids #Moon #Stars #SolarSystem #Nebulae #Galaxies #Constellations #MilkyWayGalaxy #Skywatching #JPL #Caltech #UnitedStates #Canada #Mexico #NorthernHemisphere #STEM #Education #HD #Video

United Launch Alliance (ULA) Rocket Factory Tour in Alabama

United Launch Alliance (ULA) Rocket Factory Tour in Alabama

The Vulcan rocket's journey to space begins in Decatur, Alabama, USA, at the United Launch Alliance’s 2.2 million square foot rocket factory. Long before the path to orbit, the missions start on the factory floor.

United Launch Alliance, LLC (ULA) is an American launch service provider formed in December 2006 as a joint venture between Lockheed Martin Space and Boeing Defense, Space & Security. The company designs, assembles, sells and launches rockets. The company uses rocket engines, solid rocket boosters, and other components supplied by other companies.

ULA Vulcan Rocket: 

Video Credit: United Launch Alliance (ULA)
Duration: 3 minutes, 43 seconds
Release Date: Dec. 1, 2025

#NASA #Space #Satellites #Earth #CommercialSpace #UnitedLaunchAlliance #VulcanRocket #ULA #LockheedMartin #Boeing #RocketFactories #Decatur #Alabama #UnitedStates #STEM #Education #HD #Video

The Tails of Interstellar Comet 3I/ATLAS: View from Texas

The Tails of Interstellar Comet 3I/ATLAS: View from Texas

How typical is our Solar System? 

Studying 3I/ATLAS, a comet just passing through, is providing clues. Confirmed previous interstellar visitors include an asteroid, a comet, a meteor, and a gas wind dominated by hydrogen and helium. Comet 3I/ATLAS appears relatively normal when compared to Solar System comets, therefore providing more evidence that our Solar System is a somewhat typical one. For example, Comet 3I/ATLAS has a broadly similar chemical composition and ejected dust. The featured image was captured last week from Texas and shows a green coma, a wandering blue-tinted ion tail likely deflected by our Sun's wind, and a slight anti-tail, all typical cometary attributes. The comet, visible with a telescope, passed its closest to the Sun in late October and will pass its closest to the Earth in mid-December. Afterwards, it will return to interstellar space and never return.

Image Description: A starfield is shown around a comet. The green coma of the comet is on the lower left. A meandering blue-tinted tail goes off to the upper right. A slight anti-tail is seen from the coma toward the lower left.


Image Credit & Copyright: Victor Sabet & Julien De Winter
Julien De Winter's website: https://www.instagram.com/dwj85
Release Date: Dec. 1, 2025


#NASA #Astronomy #Space #Science #InterstellarObjects #InterplanetaryBodies #InterstellarComet3I #Comets #Coma #CometaryTails #Planets #SolarSystem #MilkyWayGalaxy #Cosmos #Universe #Astrophotography #VictorSabet #JulienDeWinter #Astrophotographers #STEM #Education

Starburst Spiral Galaxy NGC 1792 in Columba | European Southern Observatory

Starburst Spiral Galaxy NGC 1792 in Columba | European Southern Observatory

Color composite image of the starburst spiral galaxy NGC 1792 obtained with the FORS1 and FORS2 multi-mode instruments (at the Very Large Telescope MELIPAL and YEPUN, respectively). It is located over 50 million light-years from Earth in the constellation Columba (the Dove).

The optical appearance of NGC 1792 is quite chaotic, due to the patchy distribution of dust throughout the disc of this galaxy. It is very rich in neutral hydrogen gas—fuel for the formation of new stars—and is indeed rapidly forming such stars. The galaxy is characterized by unusually luminous far-infrared radiation; this is due to dust heated by young stars. Note the numerous background galaxies in this sky field. North is up and East is to the left.

Learn more about the Very Large Telescope (VLT):
https://www.eso.org/public/teles-instr/paranal-observatory/vlt/


Credit: European Southern Observatory (ESO)/P. Barthel
Release Date: Dec. 19, 2003 


#NASA #ESO #Astronomy #Space #Science #Stars #Galaxies #Galaxy #NGC1792 #SpiralGalaxies #StarburstGalaxies #Columba #Constellations #Cosmos #Universe #VLT #FORS2 #ParanalObservatory #Chile #SouthAmerica #Europe #STEM #Education

Spiral Galaxy NGC 1792 in Columba: A Storm of New Stars | Hubble

Spiral Galaxy NGC 1792 in Columba: A Storm of New Stars | Hubble


The subject of this Hubble picture is a stormy and highly active spiral galaxy named NGC 1792. Located over 50 million light-years from Earth in the constellation Columba (the Dove), the bright glow of the galaxy’s center is offset by the sparkling and feathery spiral arms swirling around it.

NGC 1792 is just as fascinating to astronomers as its chaotic look might imply. Classified as a starburst galaxy, it is a powerhouse of star formation with spiral arms rich in star-forming regions. In fact, it is surprisingly luminous for its mass. The galaxy is close to a larger neighbor, NGC 1808, and the strong gravitational interaction between the two is believed to be what has stirred up the reserves of gas in this galaxy. The result is a torrent of star formation, concentrated on the side where gravity has a stronger effect. It is a perfect target for astronomers seeking to understand the complex interactions between gas, star clusters and supernovae in galaxies.

Hubble provided an image of this galaxy in 2020. This image includes additional data collected throughout 2025, providing a deeper view of the tumultuous astrophysical activity taking place in the galaxy. Blossoming red lights in the arms mark out so-called H-alpha emission from dense clouds of hydrogen molecules. Stars form within these clouds and shine powerfully with ultraviolet radiation. They ionize the gas around them, causing the gas to emit a very particular red wavelength of light—a tell-tale sign of new stars.

Image Description: A spiral galaxy, seen partly from the side, with a messy, turbulent appearance. Its disc is made of multiple patchy arms that contain numerous sparkling blue and glowing red regions—star clusters and star-forming nebulae. Thick clumps of dark reddish dust swirl through the disc. The glow of the disc extends out into the dark background, where both distant and nearby stars can be seen.


Credit: ESA/Hubble & NASA, D. Thilker, F. Belfiore, J. Lee and the PHANGS-HST Team
Release Date: Dec. 1, 2025

#NASA #Astronomy #Hubble #Space #Science #Stars #Galaxies #Galaxy #NGC1792 #SpiralGalaxies #StarburstGalaxies #Columba #Constellations #Cosmos #Universe #HubbleSpaceTelescope #HST #GSFC #STScI #UnitedStates #ESA #Europe #STEM #Education

Sunday, November 30, 2025

Shenzhou-21 Astronauts Conduct Science Experiments & Drills | China Space Station

Shenzhou-21 Astronauts Conduct Science Experiments & Drills | China Space Station

The Shenzhou-21 crew members aboard China's Tiangong Space Station carried out multiple science experiments and their first full-system emergency response drills, among other tasks, in orbit over the past week.

The three astronauts—Zhang Lu, Wu Fei, and Zhang Hongzhang—have been in orbit for a month as of Sunday, November 30, 2025.

Using laptops aboard the space station, the astronauts conducted microgravity experiments on intuitive physical behavior, collecting relevant behavioral data to explore the impact of long-term spaceflight on human's intuitive physical representations and the mechanisms of their recovery.

They used space Raman spectrometer to analyze metabolic components in urine samples. The collected information will be used for further refinement and improvement of the relevant characteristic metabolite indicator system and evaluation criteria.

Additionally, the crew completed the installation of new software for space medical experiments. In microgravity physics science, the crew completed scheduled tasks including replacing the high-speed image storage unit in the two-phase system experiment cabinet and disassembling and assembling experimental modules.

Additionally, per experimental schedule, they cleaned and replaced samples within the containerless cabinet's experimental chamber, cleaned window cover lenses and conducted other relevant mission tasks.

The crew also conducted their first full-system emergency pressure response drills in orbit as planned. This simulated the full emergency response process for an internal depressurization scenario, reinforcing and enhancing the crew's emergency handling capabilities and ground-space coordination.

In equipment inspection and maintenance, the crew performed patrols of the cryogenic storage units and the minus 80-degree space refrigerator, checked pressures in the environmental control gas cylinder, and conducted maintenance on the regenerative life support system equipment.

In station management, the crew organized supplies and cleaned the cabin, keeping their orbiting home tidy. In addition, they underwent multiple medical examinations, including non-invasive cardiac function tests, providing data for ground teams to closely monitor their health in orbit.

Shenzhou-21 Crew
Zhang Lu (张陆) - Commander & Pilot - 2nd spaceflight
Wu Fei (武飞)  Flight Engineer - 1st spaceflight
Zhang Hong Zhang (张洪章) - Payload Specialist - 1st spaceflight


Video Credit: CCTV
Duration: 1 minute, 29 seconds
Release Date: Nov. 30, 2025


#NASA #Space #Science #China #中国 #Shenzhou21Mission #神舟二十一号 #Shenzhou21 #Taikonauts #Astronauts #ZhangLu #WuFei #ZhangHongzhang #ChinaSpaceStation #中国空间站 #TiangongSpaceStation #SpaceLaboratory #MicrogravityExperiments #CMSA #中国载人航天工程办公室 #HumanSpaceflight #STEM #Education #HD #Video

A 'Double Helix' Lunar Eclipse with Zodical Light & The Milky Way over China

A 'Double Helix' Lunar Eclipse with Zodical Light & The Milky Way over China

This image was timed to capture a total lunar eclipse—but it came with quite a twist. First, the eclipse: the fully Earth-shadowed Moon is visible as an orange orb near the top. The eclipsed Moon's orange color is caused by a slight amount of red light scattered first by Earth's atmosphere, adding a color like a setting Sun. Now, the twist: one of the apparent double helix bands is the Milky Way, the central disk of our home galaxy. The second band is zodiacal light, sunlight scattered by dust within our Solar System. The reason they cross is because the plane where dust orbits our Sun is tilted relative to the plane where stars orbit our Galaxy. This well-known tilt is shown dramatically in the featured wide-angle Mercator-projected picture, spanning from horizon to horizon, captured in early September from Mingantu Observing Station in China's Inner Mongolia Autonomous Region.

Zodiacal light is produced by starlight reflecting off of dust orbiting our 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 investgated, a leading hypothesis holds that zodiacal dust originates mostly from faint Jupiter-family comets and that it slowly spirals inwards toward the Sun.

Image Description: A wide angle image of the night sky is punctuated by a radio telescope on the lower left. Two bands of light run through the sky—the Milky Way and zodiacal light. The bands intertwine like a double helix. Near the top is an orange orb that is a totally eclipsed moon.

Learn more about China's Mingantu Observing Station (MOS) for radio astronomy:
https://english.nao.cas.cn/Research2015/Research_Divisions2015/solar/202012/t20201217_256816.html

Image Credit & Copyright: Chunlin Liu
Release Date: Nov. 3, 2025

#NASA #Astronomy #Space #Science #SolarSystem #Sun #ZodiacalLight #Planets #Earth #Moon #LunarEclipse #MilkyWayGalaxy #Cosmos #Universe #Astrophotography #ChunlinLiu #Astrophotographers #MingantuObservingStation #InnerMongolia #内蒙古自治区 #China #中国 #GSFC #UnitedStates #STEM #Education #APoD

NASA's ESCAPADE Mission to Mars: Spacecraft Commissioning with Rocket Lab

NASA's ESCAPADE Mission to Mars: Spacecraft Commissioning with Rocket Lab

"Our operators have spent recent days stabilizing spacecraft attitudes, deploying solar arrays, checking guidance and navigation systems, and powering up all flight computers and antennas on Blue and Gold as they begin their journey to Mars for NASA's ESCAPADE mission." 

"Take a look at what goes on behind the scenes in mission control."

The twin spacecraft for NASA's ESCAPADE Mars Mission were manufactured by Rocket Lab:

A Blue Origin New Glenn rocket launched NASA’s Escape and Plasma Acceleration and Dynamics Explorers (ESCAPADE) twin-spacecraft into its designated orbit on November 13, 2025, from Cape Canaveral.

The NASA Escape and Plasma Acceleration and Dynamics Explorers (ESCAPADE) Mars Mission will study the planet's unique hybrid magnetosphere. ESCAPADE will investigate how the solar wind interacts with Mars’ magnetic environment and how this interaction drives the planet’s atmospheric escape. It will take ESCAPADE about 11 months to arrive at Mars after leaving Earth orbit.

ESCAPADE is led by the UC Berkeley Space Sciences Laboratory. It is responsible for mission management, systems engineering, science leadership, navigation, operations, the electron and ion electrostatic analyzers, plus science data processing and archiving.

Key partners are Rocket Lab USA (spacecraft), NASA Goddard Space Flight Center (magnetometers), Embry Riddle Aeronautical University (Langmuir probes), Advanced Space LLC (mission design), and Blue Origin (launch).

Learn more about the two identical spacecraft designed, built, integrated, and tested by Rocket Lab for the University of California Berkeley’s Space Science Laboratory and NASA's Mars Mission:


🚀Blue Origin's New Glenn Rocket:

Video Credit: Rocket Lab
Duration: 1 minute, 51 seconds
Release Date: Nov 26, 2025

#NASA #Space #Astronomy #Science #Stars #Sun #SpaceWeather #Planets #Mars #Magnetosphere #MartianAtmosphere #ESCAPADEMission #ESCAPADESpacecraft #RocketLab #PeterBeck #SolarSystem #SpaceExploration #GSFC #SSL #UCBerkeley #BlueOrigin #NewGlenn #UnitedStates #STEM #Education #HD #Video

Journey to Spiral Galaxy NGC 1073 in Cetus | Hubble Space Telescope

Journey to Spiral Galaxy NGC 1073 in Cetus | Hubble Space Telescope


This video zooms from an image of constellation of Cetus (the Sea Monster) into a closeup of the galaxy NGC 1073, imaged by the NASA/European Space Agency Hubble Space Telescope.

Our own galaxy, the Milky Way, is thought to have a similar barred spiral shape, and the study of galaxies such as NGC 1073 can help astronomers learn more about our celestial home.

Distance: 55 million light years from Earth


Credit: NASA, European Space Agency (ESA), Digitized Sky Survey 2, Adam Block/Mount Lemmon SkyCenter/University of Arizona
Duration: 56 seconds
Release Date: Feb. 3, 2012


#NASA #Astronomy #Hubble #Space #Science #Galaxies #Galaxy #NGC1073 #SpiralGalaxies #SB #Cetus #Constellations #Cosmos #Universe #HubbleSpaceTelescope #HST #GSFC #STScI #UnitedStates #ESA #Europe #STEM #Education #HD #Video

Close-up: Spiral Galaxy NGC 1073 in Cetus | Hubble Space Telescope

Close-up: Spiral Galaxy NGC 1073 in Cetus | Hubble Space Telescope

The NASA/European Space Agency Hubble Space Telescope has taken a picture of the barred spiral galaxy NGC 1073. It is found in the constellation of Cetus (The Sea Monster). Our own galaxy, the Milky Way, is thought to be a similar barred spiral, and the study of galaxies, such as NGC 1073, can help astronomers learn more about our celestial home.

Distance: 55 million light years from Earth


Credit: NASA & European Space Agency (ESA)
Duration: 30 seconds
Release Date: Feb. 3, 2012


#NASA #Astronomy #Hubble #Space #Science #Galaxies #Galaxy #NGC1073 #SpiralGalaxies #SB #Cetus #Constellations #Cosmos #Universe #HubbleSpaceTelescope #HST #GSFC #STScI #UnitedStates #ESA #Europe #STEM #Education #HD #Video

Comet C/2025 A6 (Lemmon) and The Milky Way over China

Comet C/2025 A6 (Lemmon) and The Milky Way over China

What did Comet Lemmon look like when it was at its best? One example is pictured here, featuring three celestial spectacles all at different distances. The closest spectacle is the snowcapped Meili Mountains, part of the Himalayas in China's southwestern Yunnan province. The middle marvel is Comet Lemmon near its picturesque best earlier this month, showing not only a white dust tail trailing off to the right but its blue solar wind-distorted ion tail trailing off to the left. Far in the distance on the left is the magnificent central plane of our Milky Way Galaxy, featuring dark dust, red nebula, and including billions of Sun-like stars. 

Comet C/2025 A6 (Lemmon) is already fading as it heads back into the outer Solar System, while the Himalayan mountains will gradually erode over the next billion years. The Milky Way Galaxy, though, will live on, forming new mountains and comets, for many billions of years into the future. Comet Lemmon passed nearest to the Earth—about half the Earth-Sun distance—on October 21, 2025.

The Himalayas, or Himalaya, is a mountain range in Asia separating the plains of the Indian subcontinent from the Tibetan Plateau. The range has examples of the Earth's highest peaks, including the highest, Mount Everest. More than 100 peaks exceeding elevations of 7,200 m (23,600 ft) above sea level lie in the Himalayas. The Himalayas abut on or cross territories of six countries: Nepal, India, China, Bhutan, Pakistan and Afghanistan.

Yunnan is an inland province in southwestern China. The province borders the Chinese provinces of Guizhou, Sichuan, autonomous regions of Guangxi and Tibet, as well as Southeast Asian countries Myanmar (Burma), Vietnam, and Laos.


Image Credit & Copyright: Lin Zixuan (Tsinghua University)
Release Date: Nov. 25, 2025


#NASA #Astronomy #Space #Science #Comets #CometC2025A6Lemmon #Coma #CometaryTails #SolarSystem #MilkyWayGalaxy #Cosmos #Universe #Astrophotography #LinZixuan #Astrophotographers #MeiliMountains #梅里雪山 #Yunnan #云南 #China #中国 #GSFC #UnitedStates #STEM #Education #APoD

Saturday, November 29, 2025

Globular Star Cluster Messier 15 in Pegasus (Deep field image)

Globular Star Cluster Messier 15 in Pegasus (Deep field image)

Stars, like bees, swarm around the center of bright globular cluster Messier 15 (M15) or NGC 7078. The central ball of over 100,000 stars is a relic from the early years of our Galaxy, and continues to orbit the Milky Way's center. M15, one of about 150 globular clusters remaining, is noted for being easily visible with only binoculars, having at its center one of the densest concentrations of stars known, and containing a high abundance of variable stars and pulsars. 

This image of M15 was taken by combining very long exposures—122 hours in all—and so brings up faint wisps of gas and dust in front of the giant ball of stars. M15 lies about 35,000 light years away toward the constellation of the Winged Horse (Pegasus).


Image Credit & Copyright: Alvaro Ibanez Perez
Alvaro Ibanez Perez's website: 
https://aipastroimaging.com/sobre-mi/
Release Date: Nov. 26, 2025

#NASA #Astronomy #Space #Science #Stars #StarClusters #GlobularStarClusters #Messier15 #M15 #NGC7078 #Pegasus #Constellations #Cosmos #Universe #GSFC #UnitedStates #Europe #STEM #Education #APoD

Spiral Galaxy NGC 1073 in Cetus | Hubble Space Telescope

Spiral Galaxy NGC 1073 in Cetus | Hubble Space Telescope


The NASA/European Space Agency Hubble Space Telescope has taken a picture of the barred spiral galaxy NGC 1073. It is found in the constellation of Cetus (The Sea Monster). Our own galaxy, the Milky Way, is thought to be a similar barred spiral, and the study of galaxies, such as NGC 1073, can help astronomers learn more about our celestial home.

Distance: 55 million light years from Earth


Credit: NASA & European Space Agency (ESA)
Release Date: Feb. 3, 2012


#NASA #Astronomy #Hubble #Space #Science #Galaxies #Galaxy #NGC1073 #SpiralGalaxies #SB #Cetus #Constellations #Cosmos #Universe #HubbleSpaceTelescope #HST #GSFC #STScI #UnitedStates #ESA #Europe #STEM #Education

Gulf of California & Mexico's Baja California Peninsula | International Space Station

Gulf of California & Mexico's Baja California Peninsula | International Space Station

The Gulf of California, also known as the Sea of Cortez, separates mainland Mexico from the Baja California Peninsula in this photograph from the International Space Station as it orbited 261 miles above California. Geologically, it is Earth’s youngest sea, formed around 5 million years ago due to tectonic activity. In 2005, the Gulf was designated a UNESCO World Heritage Site in recognition of its unique oceanographic processes and extraordinary biodiversity.

The Gulf of California is bordered by the states of Baja California, Baja California Sur, Sonora, and Sinaloa with a coastline of approximately 4,000 km (2,500 mi). 

Baja California, officially the Free and Sovereign State of Baja California, is a state in Mexico. It is the northwesternmost of the 32 federal entities of Mexico


Expedition 73 Crew
Station Commander: Sergey Ryzhikov (Roscosmos)
JAXA Flight Engineer (Japan): Kimiya Yui
Roscosmos (Russia) Flight Engineers: Alexey Zubritskiy, Oleg Platonov
NASA Flight Engineers: Jonny Kim, Zena Cardman, Mike Fincke

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.

Image Credit: NASA's Johnson Space Center
Date: Oct. 1, 2025

#NASA #Space #ISS #Earth #PacificOcean #GulfOfCalifornia #GolfoDeCalifornia #BajaCalifornia #Mexico #Astronauts #Japan #JAXA #Cosmonauts #Russia #Roscosmos #HumanSpaceflight #SpaceLaboratory #JSC #UnitedStates  #Expedition73 #STEM #Education

Wide-field view of Spiral Galaxy NGC 1055 in Cetus

Wide-field view of Spiral Galaxy NGC 1055 in Cetus

This image from a ground-based telescope shows the region surrounding NGC 1055, seen side-on, in the lower right-hand corner. Can you spot it? The spiral galaxy at the center of this picture is NGC 1073 in the Cetus constellation.

Several other galaxies are also visible here, such as Messier 77 located nearly at the bottom of the frame.

The Digitized Sky Survey (DSS) is a ground-based imaging survey of the entire sky in several colors of light produced by the Space Telescope Science Institute (STScI) through its Guide Star Survey group.


Credit: NASA, European Space Agency, Digitized Sky Survey 2 
Acknowledgement: Davide De Martin
Image Credit: Feb. 3, 2012


#NASA #Astronomy #Space #Science #Stars #Galaxies #NGC1055 #SpiralGalaxies #Cetus #Constellations #Cosmos #Universe #STScI #DSS #DSS2 #UnitedStates #STEM #Education

Spiral Galaxy NGC 1055 in Cetus

Spiral Galaxy NGC 1055 in Cetus

Big, beautiful spiral galaxy NGC 1055 is a dominant member of a small galaxy group a mere 60 million light-years away toward the aquatically intimidating constellation Cetus. Seen edge-on, the island universe spans over 100,000 light-years, a little larger than our own Milky Way galaxy. The colorful, spiky stars decorating this cosmic portrait of NGC 1055 are in the foreground, well within the Milky Way. Notice the pinkish star forming regions and young blue star clusters scattered through winding dust lanes along the distant galaxy's thin disk. With a smattering of even more distant background galaxies, the deep image also reveals a boxy halo that extends far above and below the central bulge and disk of NGC 1055. The halo itself is laced with faint, narrow structures, and could represent the mixed and spread out debris from a satellite galaxy disrupted by the larger spiral some 10 billion years ago.


Image Credit & Copyright: John Hayes
John's website: 
https://app.astrobin.com/u/jhayes_tucson
Release Date: Nov. 27, 2025

#NASA #Astronomy #Space #Science #Galaxies #NGC1055 #SpiralGalaxies #Cetus #Constellations #Cosmos #Universe #Astrophotography #JohnHayes #Astrophotographer #GSFC #UnitedStates #STEM #Education #APoD