"Most excitingly, this new idea addresses one of the longstanding habitability problems on Europa and is a good sign for the prospects of extraterrestrial life in its ocean."
The waxing Moon marches east across the evening sky. It says hello to binary Gamma Arietis on Saturday, then occults some of the Pleiades for Europe on Tuesday. But it's past them by nightfall in North America.
Image: The Copernicus Sentinel-2 mission takes us at the Brazilian-Bolivian border over part of the Pantanal region, a unique ecosystem, home to an impressive variety of plants and wildlife.
NASA’s Space Launch System rocket at Launch Complex 39B (left) and United Launch Alliance’s Vulcan rocket inside its Vertical Integration Facility (right): Image: NASA/Keegan Barber (left), United Launch Alliance (right)
February 2026 is shaping up to be a blockbuster month for launches from Florida’s Space Coast. In addition to a now regular cadence of Falcon 9 launches from SpaceX, Cape Canaveral is poised to see launches from Blue Origin, United Launch Alliance and potentially NASA via its Space Launch System rocket.
We all know people that seem to defy aging and appear much younger than they actually are. This same phenomenon happens in astronomy, too. Some stars just don't seem to age the same way other stars do.
"It is exciting to think that Little Red Dots may represent the first direct observational evidence of the birth of the most massive black holes in the universe."
We know what will happen to the Sun and our Solar System because we can look outward into the galaxy and examine older Sun-like stars in their evolutionary end states. Nothing lasts forever, including a star's hydrogen. Eventually, stars deplete their hydrogen fuel and leave the main sequence behind. Stars with masses similar to the Sun will first swell and turn red, then shed their outer layers. That's what we see when we gaze at older Sun-like stars.
Starfleet Academy's third mission is remarkably light on peril, but that isn't necessarily a problem
‘Blake’s 7’ is heading back to deep space as Emmy-nominated director Peter Hoar launches a new indie studio and plans a reboot of the cult British sci-fi drama.
The Vaonis Hestia, through clever means, turns your smartphone into a smart telescope.
ESA’s flagship Proba-3 mission shows its stuff as an on-demand, eclipse producing machine.
Blue Origin launched six people to suborbital space today (Jan. 22). It was the 17th human spaceflight for the company, which was founded by Amazon's Jeff Bezos.
SpaceX lit up the night sky over Vandenberg Space Force Base today (Jan. 22) with the launch of 25 more satellites for its Starlink broadband internet service.
"Until now, it was unknown what type of star would remain after the merger."
Rocket Lab launched its first mission of 2026 this morning (Jan. 22), sending two satellites aloft for the European company Open Cosmos.
3I/ATLAS is the third interstellar visitor ever to visit the solar system having been formed around a distant star.
A NASA astronaut on the ISS captured the Space Launch System rocket for Artemis 2, a mission that aims to bring four astronauts around the moon as soon as Feb. 6.
The Core And Filament Formation/Evolution In Natal Environments (CAFFEINE) survey is an "astronomer's best friend," according to the European Southern Observatory.
The lunar crescent will disappear below the horizon before midnight on Jan. 22.
New videos from the Solar Orbiter and the Chandra X-ray Observatory capture magnetic avalanches on the Sun and the exploding remnants of a star 17,000 light-years away.
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