Friday, March 13, 2026

CG 4 in Puppis: The Globule and The Galaxy

CG 4 in Puppis: The Globule and The Galaxy

Is this a cosmic monster ready to devour an unsuspecting galaxy?

Thankfully, that is not the case. The red “monster” shown in the featured image is cometary globule CG 4, 1,300 light-years away in the constellation Puppis. CG 4 is a molecular cloud, where hydrogen becomes cold enough to form molecules that can be brought together by gravity to create stars. The shape of CG 4 resembles that of a comet, but its head is 1.5 light-year in diameter and its tail is 8 light-years long; for comparison, the distance from the Earth to the sun is only 8 light-minutes.

Astronomers think that the tail of a cometary globule could have been shaped by a nearby supernova explosion or by irradiation from hot, massive stars. Indeed, CG 4 and other nearby globules point away from the Vela Supernova Remnant, at the center of the Gum Nebula. The edge-on spiral galaxy, ESO 257-19, is more than a hundred million light-years beyond CG 4, and is completely safe from the “monster”.


Image Credit & Copyright: William Vrbasso
William's website: https://www.stellaraustralis.com
Text: Cecilia Chirenti (NASA GSFC, UMCP, CRESST II)
Release Date: March 11, 2026

#NASA #Astronomy #Space #Science #Galaxies #SpiralGalaxy #ESO25719 #Nebulae #MolecularCloud #CometaryGlobuleCG4 #CG4 #PuppisConstellation #MilkyWayGalaxy #Universe #Astrophotography #WilliamVrbasso #Astrophotographer #GSFC #STEM #Education #APoD

Inside the World's Largest Telescope: "It's Progressing Fast!" | ESO

Inside the World's Largest Telescope: "It's Progressing Fast!" | ESO

With its 39 m primary mirror, the European Southern Observatory's Extremely Large Telescope (ELT) will be the biggest and most powerful optical telescope in the world. In this episode of Chasing Starlight, we take you on an exclusive tour of the ELT, from the massive telescope structure inside the dome to the facility that will coat the mirrors with reflective silver.

The Extremely Large Telescope (ELT) is a massive building. It is almost as tall as London's Big Ben clock tower and larger than Rome's Colosseum. The construction materials used for the ELT include: 10,000 tonnes of steel, 30 million bolts or 500 km of cables.

The ELT stands at Cerro Armazones in Chile's Atacama Desert. 
Altitude: 3,046 meters
Planned year of technical first light: 2027

Learn more about ESO’s ELT at: https://elt.eso.org

Credit: European Southern Observatory
Directed by: L. Calçada, M. Kornmesser, N. Schäfer
Hosted by: S. Randall
Written by: S. Randall, K.-M. Mikosch
Editing: M. Kornmesser, L. Calçada
Videography: A. Tsaousis, N. Schäfer
Animations & footage: ESO, L. Calçada, M. Kornmesser, J. C. Muñoz-Mateos, G. Vecchia, A. Tsaousis, Google Earth, CIMOLAI/S. Petković, H.-H. Heyer, SCHOTT AG, G. Hüdepohl Safran, Chepox, M. Wallner, J. Beltrán, E. Garcéss
Filming Locations: Cerro Armazones and ELT
Acknowledgements: D. Deina, R. Parra, B. Koehler, ACe/Cimolai, SCHOTT, Safran Reosc, PI - Physik Instrumente, FAMES (Micro-Epsilon Messtechnik, Fogale Nanotech), VDL ETG Projects B.V.
Duration: 10 minutes
Release Date: March 13, 2026

#NASA #ESO #Astronomy #Space #Science #AstronomicalObservatories #ExtremelyLargeTelescope #ELT #Construction #Nebulae #Stars #Exoplanets #Galaxies #MilkyWayGalaxy #Universe #BiggestEyeOnTheSky #Technology #Engineering #CerroArmazones #AtacamaDesert #Chile #Europe #STEM #Education #HD #Video

China CAS Space Commercial Liqing-2 Rocket Engine Completes Long-Range Test

China CAS Space Commercial Liqing-2 Rocket Engine Completes Long-Range Test

China's liquid oxygen kerosene engine, the Liqing-2, developed by CAS Space, completed a long-range test on Thursday, March 12, 2026, marking a significant milestone in the advancement of reusable rocket technology.

During the test, the 110-tonne pin engine underwent multiple ignitions. The longest single operation lasted 200 seconds, contributing to a total operational time of 420 seconds, covering the flight duration of the first stage of the rocket. The engine's cumulative testing time has now surpassed 1,000 seconds.

"This marks that the engine can enter the reliability verification testing phase, preparing for mass production," said Chen Zhan, chief designer of the Liqing-2.

The Liqing-2 features a pin nozzle design, incorporating a pin-like protrusion at the center of the engine nozzle. This design allows for precise thrust control through a simple structure, making it highly reliable and an essential technology for reusable rockets. Compared to conventional designs, the Liqing-2 is more cost-effective and lighter, balancing high performance with economic efficiency.

"The pin nozzle injector comes at a relatively low cost. The successful development of this type of rocket engine means that China's commercial aerospace sector will have greater capabilities, more options, and lower costs, contributing to the industry's high-quality growth," said Chen.

The Liqing-2 will serve as the main engine for the reusable rockets Lijian-2 and Kinetica-2H.

CAS Space is a commercial spaceflight company established by the Institute of Mechanics under the Chinese Academy of Sciences.

Kerosene has several advantages as a rocket fuel. It is generally cheaper, and denser, while remaining stable at room temperature. It is easier to handle and is not toxic like hypergolic propellents. Kerosene is readily transportable and has no leakage issues similar to liquid hydrogen (LH2). It also has a higher energy density and presents a lower explosion hazard than LH2. Kerosene rocket engines produce more thrust per unit cost.


Video Credit: CCTV
Duration: 1 minute, 16 seconds
Release Date: March 13, 2026

#NASA #Space #Satellites #Earth #CASSpace #Liqing2 #RocketEngines #LiquidOxygen #LOX #Kerosene #RP1 #Lijian2Rockets #Kinetica2HRockets #LaunchVehicles #ReusableRockets #China #中国 #CASSpace #中科宇航 #CAS #中国科学院 #CommercialSpace #STEM #Education #HD #Video

Japan's HTV‑X1 Cargo Spacecraft Departure | International Space Station

Japan's HTV‑X1 Cargo Spacecraft Departure | International Space Station







The HTV‑X1 cargo spacecraft from the Japan Aerospace Exploration Agency (JAXA) is shown in the grasp of the Canadian Space Agency's Canadarm2 robotic arm after being detached from the Earth‑facing port of the International Space Station’s Harmony module, along with its release on March 6, 2026.

The HTV-X1 spacecraft successfully departed the station more than four months after arriving to deliver more than 9,000 pounds of supplies, scientific investigations, commercial products, hardware and other cargo for NASA and its international partners.



Follow Expedition 74:

Expedition 74 Crew
Station Commander: Sergey-Kud Sverchkov (Russia)
Roscosmos (Russia) Flight Engineers: 
Andrey Fedyaev, Sergei Mikaev
European Space Agency Flight Engineer: Sophie Adenot
NASA Flight Engineers: Jessica Meir, Jack Hathaway, Chris Williams

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 Credits: NASA's Johnson Space Center/Chris Williams
Image Date: March 6, 2026

#NASA #Space #Astronomy #Science #ISS #Planets #Earth #Canadarm2 #HTVX1CargoSpacecraft #JAXA #宇宙航空研究開発機構 #Japan #日本 #Astronauts #ChrisWilliams #AstronautPhotography #UnitedStates #ESA #France #Europe #Cosmonauts #Russia #Roscosmos #HumanSpaceflight #SpaceLaboratory #InternationalCooperation #Expedition74 #STEM #Education

Thursday, March 12, 2026

Cygnus NG-23 Cargo Spacecraft Departure | International Space Station

Cygnus NG-23 Cargo Spacecraft Departure | International Space Station

Expedition 74 Flight Engineer and NASA Astronaut Jessica Meir: "Another day on the International Space Station brings the departure of another vehicle, the last of our three cargo vehicles on the US Operating Segment (USOS). Today, we bid farewell to the Northrop Grumman Cygnus NG-23 cargo vehicle, named after our late colleague NASA astronaut Willie McCool. 

As I watched Cygnus disappear over the horizon, I took a moment to reflect and honor Willie, and all of the STS-107 crew, who honorably gave their lives in their effort to advance science and space exploration. 

Godspeed S.S. William 'Willie' C. McCool, thank you for your service!"

At 7:06 a.m. EDT, March 12, 2026, Northrop Grumman’s Cygnus XL was released from the Canadarm2 robotic arm that earlier detached the cargo spacecraft from the Earth-facing port of the International Space Station’s Unity module. At the time of release, the station was flying about 260 miles over the south Atlantic Ocean.

The Cygnus XL spacecraft successfully departed the space station more than seven months after arriving at the orbiting laboratory to deliver about 11,000 pounds of supplies, scientific investigations, commercial products, hardware and other cargo for NASA and its international partners.

The spacecraft will be commanded to deorbit on Saturday, March 14, to dispose of several thousand pounds of trash during its re-entry into Earth’s atmosphere, where it will "harmlessly" burn up.

Follow Expedition 74:

Expedition 74 Crew
Station Commander: Sergey-Kud Sverchkov (Russia)
Roscosmos (Russia) Flight Engineers: 
Andrey Fedyaev, Sergei Mikaev
European Space Agency Flight Engineer: Sophie Adenot
NASA Flight Engineers: Jessica Meir, Jack Hathaway, Chris Williams

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/Jessica Meir
Duration: 10 seconds
Date: March 12, 2026

#NASA #Space #Astronomy #Science #ISS #Planets #Earth #CygnusXLCargoSpacecraft #NorthropGrumman #Canadarm2 #Astronauts #JessicaMeir #AstronautVideography #UnitedStates #ESA #France #Europe #Cosmonauts #Russia #Roscosmos #HumanSpaceflight #SpaceLaboratory #InternationalCooperation #Expedition74 #STEM #Education #HD #Video

Alpha Flight 7 Rocket Launch Successful | Firefly Aerospace

Alpha Flight 7 Rocket Launch Successful | Firefly Aerospace









Firefly Aerospace has announced the successful launch of its Alpha Flight 7 Stairway to Seven Mission. Alpha lifted off from Firefly’s Space Launch Complex 2 at the Vandenberg, California, at 5:50 pm Pacific Daylight Time (PDT) on March 11, 2026, before completing an orbital insertion and delivering a demonstrator payload for Lockheed Martin. Firefly’s Alpha rocket also performed a stage two engine relight and validated key Alpha Block II upgrades, including a new in-house avionics suite and enhanced thermal protection system, ahead of the full Block II configuration upgrade planned for Flight 8.

The Firefly team is now working to complete the final milestones for Alpha Flight 8 that is set to launch the full Block II configuration upgrade designed to enhance reliability and manufacturability across the vehicle. The upgrades include a 7-foot increase to Alpha’s length, consolidated batteries and avionics built in house, improved thermal protection system, and stronger carbon composite structures built with automated machinery.


Image Credit: Firefly Aerospace/Sean Parker
Image Date: March 11, 2026


#NASA #Space #Science #Satellites #FireflyAerospace #AlphaRocket #AlphaLaunchVehicle #RocketLaunch #FLTA007 #StairwayToSevenMission #Vandenburg #California #CommercialSpace #LockheedMartin #UnitedStates #STEM #Education

Alpha Flight 7 Rocket Launch Successful | Firefly Aerospace

Alpha Flight 7 Rocket Launch Successful | Firefly Aerospace

Firefly Aerospace has announced the successful launch of its Alpha Flight 7 Stairway to Seven Mission. Alpha lifted off from Firefly’s Space Launch Complex 2 at the Vandenberg, California, at 5:50 pm Pacific Daylight Time (PDT) on March 11, 2026, before completing an orbital insertion and delivering a demonstrator payload for Lockheed Martin. Firefly’s Alpha rocket also performed a stage two engine relight and validated key Alpha Block II upgrades, including a new in-house avionics suite and enhanced thermal protection system, ahead of the full Block II configuration upgrade planned for Flight 8.

The Firefly team is now working to complete the final milestones for Alpha Flight 8 that is set to launch the full Block II configuration upgrade designed to enhance reliability and manufacturability across the vehicle. The upgrades include a 7-foot increase to Alpha’s length, consolidated batteries and avionics built in house, improved thermal protection system, and stronger carbon composite structures built with automated machinery.


Video Credit: Firefly Aerospace
Duration: 1 minute, 13 seconds
Release Date: March 12, 2026


#NASA #Space #Science #Satellites #FireflyAerospace #AlphaRocket #AlphaLaunchVehicle #RocketLaunch #FLTA007 #StairwayToSevenMission #Vandenburg #California #CommercialSpace #LockheedMartin #UnitedStates #STEM #Education #HD #Video

Sagittarius Star Field in The Milky Way Galaxy | Hubble Space Telescope

Sagittarius Star Field in The Milky Way Galaxy | Hubble Space Telescope

This stunning image, captured by the NASA/European Space Agency Hubble Space Telescope’s Advanced Camera for Surveys (ACS), shows part of the sky in the constellation of Sagittarius (The Archer). The region is rendered in exquisite detail—deep red and bright blue stars are scattered across the frame, set against a background of thousands of more distant stars and galaxies. Two features are particularly striking: the colors of the stars, and the dramatic crosses that burst from the centers of the brightest bodies.

While colors in this frame have been enhanced and tweaked during the process of creating the image from the observational data, stars glow in distinct colors. They range in color according to their surface temperature—very hot stars are blue or white, while cooler stars are redder. They may be cooler because they are smaller, or because they are very old and have entered the red giant phase, when an old star expands and cools dramatically as its core collapses.

The crosses are nothing to do with the stars themselves, and, because Hubble orbits above Earth’s atmosphere, nor are they due to any kind of atmospheric disturbance. They are actually known as diffraction spikes, and are caused by the structure of the telescope itself. Like all big modern telescopes, Hubble uses mirrors to capture light and form images. Its secondary mirror is supported by struts, called telescope spiders, arranged in a cross formation. They diffract the incoming light. Diffraction is the slight bending of light as it passes near the edge of an object. Every cross in this image is due to a single set of struts within Hubble. While the spikes are technically an inaccuracy, many astrophotographers choose to emphasize and celebrate them as a beautiful feature of their images.

The Hubble Space Telescope is a joint ESA/NASA project and was launched in 1990 by the Space Shuttle mission STS-31 into a low-Earth orbit 600 km above the ground. During its lifetime Hubble has become one of the most important science projects ever.


Credit: ESA/Hubble & NASA
Release Date: Jan. 16, 2017

#NASA #ESA #Astronomy #Space #Science #Stars #SagittariusConstellation #MilkyWayGalaxy #Cosmos #Universe #HubbleSpaceTelescope #HST #Europe #GSFC #STScI #UnitedStates #STEM #Education

China's First Female Astronaut Describes Role of Space Industry as Growth Driver

China's First Female Astronaut Describes Role of Space Industry as Growth Driver

China's first female astronaut Liu Yang, a deputy to the 14th National People's Congress (NPC) has called for coordinated efforts to unleash greater innovation in China's space sector. It is emerging as a key engine for high-quality development.

This year's government work report, delivered by Chinese Premier Li Qiang on Thursday, March 5, 2026, highlighted the numerous achievements made in China's space sector, while the draft outline of the 15th Five-Year Plan (2026-2030), a blueprint which maps out China's socioeconomic development priorities through to the end of the decade, stressed the importance of fostering emerging pillar industries, such as aviation and aerospace.

Deputies have been convening in Beijing over the past week for the annual session of the 14th NPC that concludes on Thursday. Liu was among those participating in the gathering. Liu made history back in 2012 when she became China's first woman in space during her first mission aboard the Shenzhou-9 spacecraft.

A decade later, Liu undertook a six-month stint in space as part of the Shenzhou-14 mission. She saw the completion of the basic configuration assembly of China's Tiangong space station.

In an interview on the sidelines of the NPC session, Liu highlighted the important role of the space industry in fostering 'new quality productive forces', a new growth model stressing sci-tech innovation, and driving high-quality development.

While China presses ahead with its ambitious space program, including plans for a crewed Moon mission by 2030, Liu called for greater efforts to promote the sector through advances in industry, technology and talent development. This can bring wider benefits to more fields.

"The draft outline of the 15th Five-Year Plan (2026–2030) for national economic and social development identifies the space industry as a strategic emerging industrial cluster and sets out major tasks, such as accelerating China's journey toward a stronger space presence, and advancing crewed lunar exploration and routine deep-space missions. From in-orbit utilization of the Tiangong space station to the development of low-Earth-orbit satellite internet, from the rapid rise of commercial space activities to forward-looking plans for space resource exploration, the space industry is becoming a key engine for fostering new quality productive forces and driving high-quality development," Liu said.

As a crew member, Liu witnessed China's mastery of key technologies for crewed spaceflight and played a vital role in the construction of the country's space station.

She noted how the space industry is a crucial endeavor which brings together the best of the scientific and engineering communities, and said the breakthroughs being made through China's space exploration can also have a positive impact across multiple sectors.

"My experience in orbit has also made me realize that integrating science and technological innovation with industry is key to unlocking development momentum. For the space sector, this means linking the entire chain from laboratories and launch sites to the space station and end applications. Hundreds of scientific experiments conducted aboard the space station, covering fields, such as new materials, life sciences and microgravity physics, have produced results that can not only advance space technologies but also help drive the development of civilian industries. The draft outline supports the participation of private space companies in the industrial chain, forming a structure led by state institutions with private companies contributing additional dynamism. This will further unleash the vitality of innovation in the space sector," she said.

Liu added that talent is the foundation of technological innovation and a cornerstone for long-term development, stressing the importance of strengthening the training of interdisciplinary professionals with expertise in engineering and operational practice.


Video Credit: CCTV
Duration: 1 minute, 47 seconds
Release Date: March 12, 2026

#NASA #Space #Science #China #中国 #ChinaSpaceStation #Moon #ILRS #MengzhouSpacecraft #梦舟 #Lanyuelunarlander #揽月 #CrewSpacecraft #LongMarch10 #长征十号 #ReusableRockets #ChinaMannedSpaceAgency #中华人民共和国 #HumanSpaceflight #LunarMissions #Taikonauts #LiuYang #刘洋 #SpaceTechnology #SpaceExploration #STEM #Education #HD #Video

Planet Mars Images: March 5-11, 2026 | NASA's Perseverance Rover

Planet Mars Images: March 5-11, 2026 | NASA's Perseverance Rover

Mars 2020 - sol 1797
Mars 2020 - sol 1797
Mars 2020 - sol 1797
Mars2020 - sol 1792
Mars 2020 - sol 1797
Mars 2020 - sol 1796
Mars 2020 - sol 1797
Mars 2020 - sol 1797


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Celebrating 5+ Years on Mars
Mission Name: Mars 2020
Rover Name: Perseverance
Main Job: Seek signs of ancient life and collect samples of rock and regolith (broken rock and soil) for return to Earth.
Launch: July 30, 2020    
Landing: Feb. 18, 2021, Jezero Crater, Mars

For more information on NASA's Mars missions, visit: mars.nasa.gov

Image Credits: NASA/JPL-Caltech/ASU/MSSS
Processing: Kevin M. Gill
Image Release Dates: March 5-11, 2026

#NASA #Space #Astronomy #Science #Planets #Mars #Astrobiology #Geology #PerseveranceRover #Mars2020 #JezeroCrater #Robotics #SpaceTechnology #SpaceEngineering #MSSS #JPL #Caltech #UnitedStates #CitizenScience #KevinGill #STEM #Education

Wednesday, March 11, 2026

China's Space Program Reaching New Heights

China's Space Program Reaching New Heights

China's space program has undergone a significant transformation over the last five years. It will reach even greater heights in the next five. From the China Space Station to deep-space exploration, China is charting an extraordinary course through the cosmos. This episode of CGTN's special series Charting the Future zooms in on the country's space program.


Video Credit: CGTN
Duration: 4 minutes, 38 seconds
Release Date: March 10, 2026

#NASA #Space #Science #China #中国 #ChinaSpaceStation #Moon #ILRS #MengzhouSpacecraft #梦舟 #Lanyuelunarlander #揽月 #CrewSpacecraft #LongMarch10 #长征十号 #ReusableRockets #ChinaMannedSpaceAgency #中华人民共和国 #HumanSpaceflight #LunarMissions #Taikonauts #Astronauts #SpaceTechnology #SpaceExploration #STEM #Education #HD #Video

What is Dark Matter and Dark Energy? | NASA Science

What is Dark Matter and Dark Energy? | NASA Science

What is the difference between dark matter and dark energy?
Learn about this and more with “Astro-Investigates,” the video series that explores and explains big astrophysics topics with the help of NASA scientists.

In this episode, you will hear from: 
Dida Markovic - Astrophysicist at NASA JPL
Jason Rhodes - Astrophysicist at NASA JPL
Eric Huff - Astrophysicist at NASA JPL


Video Credit: NASA's Goddard Space Flight Center
Host and Co-Producer: Chelsea Gohd 
Editor/Director/Co-Producer: Keith Miller (Caltech-IPAC) 
Science Visualizations/Co-Producer: Robert Hurt (Caltech-IPAC) 
Duration: 6 minutes
Release Date: March 11, 2026

#NASA #Astronomy #Space #Science #Astrophysics #Astrophysicists #DarkMatter #DarkEnergy #Stars #Nebulae #MilkyWayGalaxy #Galaxies #Cosmos #Universe #NASAGoddard #GSFC #Greenbelt #Maryland #UnitedStates #STEM #Education #HD #Video

Planet Mars: Dune Field of Matara Crater | NASA's Mars Reconnaissance Orbiter

Planet Mars: Dune Field of Matara Crater | NASA's Mars Reconnaissance Orbiter

NASA's Mars Reconnaissance Orbiter (MRO) has spent over twenty years (2006-2026) orbiting the Red Planet, collecting valuable scientific data. Matara Crater is a favorite image owing to the massive and gorgeous sand sheet that dominates the floor. We often image these dunes for the gullies that form on them due to carbon dioxide ice. Matara is located in Noachis Terra and is 48 kilometers (30 mi) in diameter. This crater is notable for its large sand deposit and dune features that are sculpted by the wind.

Noachis Terra is an extensive southern landmass (terra). It lies west of the giant Hellas impact basin, roughly between the latitudes −20° and −80° and longitudes 30° west and 30° east, centered on 45°S 350°E. It is in the Noachis quadrangle.

This is a non-narrated clip with ambient sound. Image is less than 5 km (3 mi) across and the spacecraft altitude was 251 km (156 mi).

The University of Arizona, in Tucson, operates the High Resolution Imaging Science Experiment (HiRISE). It was built by BAE Systems in Boulder, Colorado. NASA's Jet Propulsion Laboratory, a division of Caltech in Pasadena, California, manages the Mars Reconnaissance Orbiter Project for NASA's Science Mission Directorate (SMD), Washington.

For more information on MRO, visit:

Video Credit: NASA/JPL-Caltech/UArizona
Duration: 3 minutes, 30 seconds
Release Date: July 4, 2023

#NASA #Space #Astronomy #Science #Mars #Planet #RedPlanet #Geology #Geoscience #Landscape #Terrain #SandDunes #Gullies #CarbonDioxideIce #MataraCrater #NoachisTerra #SouthernHemisphere #MRO #MarsOrbiter #MarsSpacecraft #HiRISECamera #JPL #Caltech #UA #UnitedStates #STEM #Education #HD #Video

How America's New Vera C. Rubin Observatory Maps the Universe Each Night

How America's New Vera C. Rubin Observatory Maps the Universe Each Night

Each night, Rubin produces 10 terabytes of data to map and survey the universe and generates millions of alerts about changing objects to help scientists zoom in with other telescopes, including the James Webb and Hubble space telescopes or ground-based instruments.

The United States Department of Energy-National Science Foundation Vera C. Rubin Observatory is about to change how we explore the universe. In this video, we break down how Rubin runs the Legacy Survey of Space and Time (LSST), what its images contain, how the data gets processed, and why this observatory is designed as a discovery engine for the entire science community. You will also see Rubin first-light imagery presented with scientifically accurate scaling and positioning against a real 360° all-sky backdrop.

The NSF-DOE Vera C. Rubin Observatory: 
https://rubinobservatory.org

Rubin’s survey is not about single, ultra-detailed snapshots like space telescopes. Instead, Rubin revisits the same regions again and again, building a 10-year time-lapse of the entire southern sky. This allows scientists to detect changes—moving asteroids, exploding stars, variable objects, and subtle shifts that only appear when you compare new images to a reference set of images of the entire southern sky.

Rubin and space telescopes serve complementary roles. Rubin finds what is new and changing, then issues alerts and targets of interest so that deeper, narrower-field observatories like the James Webb Space Telescope and the Hubble Space Telescope can zoom in and study those objects in close detail. Rubin will also create yearly highly detailed catalogs of 20 billion galaxies in our universe, 17 billion stars in the Milky Way, and millions of objects in the solar system.

Rubin is a ground-based observatory located on Cerro Pachón in northern Chile at 2,680 meters elevation. That site combines altitude, dry air, and stable conditions that are ideal for wide-field survey astronomy. Being ground-based is key to Rubin’s speed. The telescope is engineered to take 15-30 seconds exposures every 30-40 seconds. It slews and settles quickly to the next field while tracking precisely to compensate for Earth’s rotation during each exposure. Rubin’s data processing system also detects and removes artifacts such as satellite streaks (by combining multiple images of the same area) so they do not contaminate the final data products.

NSF–DOE Vera C. Rubin Observatory is a joint initiative of the U.S. National Science Foundation (NSF) and the U.S. Department of Energy’s Office of Science. Rubin is operated jointly by NSF NOIRLab and SLAC National Accelerator Laboratory.


Credits: Written & Produced by Olivier Bonin/SLAC National Accelerator Laboratory
Presenter: Phil Marshall, Deputy Director of Operations, Rubin Observatory/SLAC
Duration: 5 minutes, 33 seconds
Release Date: March 11, 2026

#NASA #Astronomy #Space #Science #DataProcessing #Stars #Galaxies #SolarSystem #Cosmos #Universe #LSSTCam #SimonyiSurveyTelescope #RubinObservatory #VeraRubin #CerroPachón #Chile #NOIRLab #NSF #DOE #AURA #SLAC #UnitedStates #STEM #Education #HD #Video

Galaxy UGC 4879 in Ursa Major: "A Mysterious Hermit" | Hubble

Galaxy UGC 4879 in Ursa Major: "A Mysterious Hermit" | Hubble


The drizzle of stars scattered across this image forms a galaxy known as UGC 4879. It is an irregular dwarf galaxy—as the name suggests, galaxies of this type are a little smaller and messier than their cosmic cousins, lacking the majestic swirl of a spiral or the coherence of an elliptical.

This galaxy is also very isolated. There are about 2.3 million light years between UGC 4879 and its closest neighbor, Leo A. This is about the same distance as that between the Andromeda Galaxy and the Milky Way.

Distance from Earth: ~4 million light years

This galaxy’s isolation means that it has not interacted with any surrounding galaxies, making it an ideal laboratory for studying star formation uncomplicated by interactions with other galaxies. Studies of UGC 4879 have revealed a significant amount of star formation in the first 4-billion-years after the Big Bang, followed by a strange nine-billion-year lull in star formation, ended 1-billion-years ago by a more recent reignition. The reason for this behavior, however, remains mysterious, and the solitary galaxy continues to provide ample study material for astronomers looking to understand the complex mysteries of starbirth throughout the Universe.

The Hubble Space Telescope is a joint ESA/NASA project and was launched in 1990 by the Space Shuttle mission STS-31 into a low-Earth orbit 600 km above the ground. During its lifetime Hubble has become one of the most important science projects ever.


Image Credit: NASA & European Space Agency (ESA)
Release Date: June 6, 2016

#NASA #ESA #Astronomy #Space #Science #Galaxies #UGC4879 #IrregularGalaxies #DwarfGalaxies #UrsaMajorConstellation #MilkyWayGalaxy #Cosmos #Universe #HubbleSpaceTelescope #HST #Europe #GSFC #STScI #UnitedStates #STEM #Education

Reflection Nebula GGD 27 in Sagittarius (near-infrared) | Gemini South Telescope

Reflection Nebula GGD 27 in Sagittarius (near-infrared) | Gemini South Telescope


Reflection nebula GGD 27 revealing the chaotic and messy environment of a stellar nursery. This near-infrared image was obtained using FLAMINGOS-2, the infrared imager and spectrograph on the Gemini South telescope in Chile. The infrared view peels back layers of obscuring gas and dust to unshroud the inner workings of star formation—and the chaos that accompanies the beautifully messy process of starbirth. In the direction of the constellation of Sagittarius, some 5,500 light-years away in the southern Milky Way, is a chaotic caldron of stellar birth known as GGD 27. While such stellar nurseries are sprinkled liberally throughout our Milky Way Galaxy, GGD 27 presents an especially compelling snapshot of stellar birth.

At first glance it looks like chaos. However, this seemingly random cloud of gas and dust is home to several nascent stars interacting in complex, but predictable ways. Millions of years from now the prenatal cloud of gas and dust will disperse and a cluster of stars will emerge much like a butterfly from its chrysalis. Until then this beautiful cloud will slowly (by human standards) evolve and allow astronomers to explore the complex process of star birth. The new infrared Gemini image peers deep into GGD 27 where a massive developing star (called a protostar) dominates the central region of the nebula. Identified as GGD 27-ILL this future star already glows several thousand times brighter than our Sun and powers a bipolar outflow where gas streams away at supersonic speeds propelled by intense magnetic fields. Other forming stars in the area complicate the scene while adding to its beauty. 

Technical Details: It is a color composite made using four filters: Y (blue), J (cyan), H (green), and Ks (red). The total integration (exposure time) for all filters is just over one hour. The image is 4.6 x 3.5 arcminutes in size and is rotated 35 degrees clockwise from North is up and East is to the left.

Gemini South Telescope:
https://noirlab.edu/public/programs/gemini-observatory/gemini-south/


Credit: International Gemini Observatory/AURA
Release Date: Dec. 29, 2016

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