Interstellar visitor 3I/ATLAS is travelling away from the sun on its way back to interstellar space.
The JWST was built with the power to observe the red-shifted light from objects in the very early Universe. Once it got going, the telescope practically inundated us with surprising, theory-challenging observations from the Universe's earliest ages. Some ancient galaxies were much larger and fully-formed than thought. So were their supermassive black holes (SMBH).
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Watch the replay of the media information session in which ESA Director General Josef Aschbacher and ESA Council Chair Renato Krpoun (CH) update journalists on key decisions taken at the ESA Council meeting, held at ESA Headquarters in Paris on 17 and 18 December 2025.
Satellites would likely begin colliding with each other or space junk in less than three days if they were to lose the ability to maneuver, for example due to an intense solar storm.
A rare interstellar comet has been caught in X-rays by two space telescopes, revealing how its gases interact with charged particles from the sun as it travels through the inner solar system.
With new technologies comes new discoveries. Or so Spider Man’s Uncle Ben might have said if he was an astronomer. Or a scientist more generally - but in astronomy that saying is more true than many other disciplines, as many discoveries are entirely dependent on the technology - the telescope, imager, or processing algorithm - used to collect data on them. A new piece of technology, the Nancy Grace Roman Space Telescope, is exciting scientists enough that they are even starting to predict what kind of discoveries it might make. One such type of discovery, described in a pre-print paper on arXiv by Vito Saggese of the Italian National Institute for Astrophysics and his co-authors on the Roman Galactic Exoplanet Survey Project Infrastructure Team, is the discovery of many more multiplantery exoplanet systems an astronomical phenomena Roman is well placed to detect - microlensing.
2025 was another busy year on the sun. But how did it compare with 2024, and what will 2026 bring for solar activity and the northern lights?
Jared Isaacman, President Donald Trump’s nominee to be the next administrator of NASA, appears before the Senate Committee on Commerce, Science, and Transportation, Wednesday, Dec. 3, 2025, at the Russell Senate Office Building in Washington. Image: NASA/Joel Kowsky
Jared Isaacman was confirmed by the U.S. Senate to be NASA’s newest administrator on Wednesday afternoon.
This 3D rendering of our planet was part of France's Festival of Lights celebration.
Find out what you can see in the night sky for tonight, from planets and stars to dazzling meteor showers.
NASA JPL pinpoints the moment the interstellar visitor passes closest to our planet.
Totally transform a kid’s bedroom into a hub of space exploration without breaking the bank this holiday season.
After testing and reviewing countless star projectors over the years, we're putting the very best head-to-head to determine which is the best for under $50 this Christmas.
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Ever wondered how planetary systems like our own Solar System form? Thanks to the European Space Agency’s Gaia space telescope, we're getting a unique peek behind the cosmic curtain into these dusty environments.
"The forces that are needed to dislodge such a massive black hole from its home are enormous."
Ten years on from 'The Force Awakens', we look back at what's gone right and what's gone wrong.
More than a year after his initial nomination, the U.S. Senate has voted to confirm billionaire private astronaut Jared Isaacman as NASA administrator.
Aerospace engineer Michi Benthaus will become the first wheelchair user ever to reach space on Thursday (Dec. 18), and you can watch her historic launch atop a Blue Origin rocket live.
Rocket Lab is scheduled to launch four "DiskSats" for the U.S. Space Force at midnight on Thursday (Dec. 18), and you can watch the action live.
There could be liquid water trapped under the southern polar cap of Mars. But new observations suggest otherwise.
The HiRISE camera on NASA's Mars Reconnaissance Orbiter just notched a big milestone, snapping its 100,000th photo of the Red Planet.
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