The medical evacuation of SpaceX's Crew-11 astronauts from the International Space Station shouldn't interfere with Artemis 2's launch to the moon, NASA Administrator Jared Isaacman says.
A magical encounter in northern Finland blends ancient folklore, swirling auroras and an unexpectedly curious fox.
Jupiter reaches opposition overnight on Jan. 10, when it appears its brightest in 2026 opposite the sun in Earth's sky.
Planets, stars, and star clusters, oh my!
"WIMPs are still the leading candidate for dark matter, but billions of dollars of experiments have been done, only getting stronger and stronger upper limits, so alternative scenarios have to be considered."
These moonless evening offer the winter Milky Way arching high over the world. And, when will Betelgeuse stand straight over Sirius for you?
Crew 11 during training before launch last August (left to right): Cosmonaut Oleg Platonov, NASA astronaut Mike Fincke, Crew 11 commander Zena Cardman and Japanese astronaut Kimiya Yui. Image: NASA
Four space station fliers have been told to cut their mission short and return to Earth ahead of schedule because of an apparently serious medical issue affecting an unidentified crew member, NASA announced Thursday.
NASA has decided to bring the four astronauts of SpaceX's Crew-11 mission home from the International Space Station early due to a medical issue experienced by a crewmember in orbit.
"Nothing in my professional training as an X-ray astronomer had prepared me for something like this."
Mars has a curious past. Rovers have shown unequivocal evidence that liquid water existed on its surface, for probably at least 100 years. But climate models haven’t come up with how exactly that happened with what we currently understand about what the Martian climate was like back then. A new paper, published in the journal AGU Advances by Eleanor Moreland, a graduate student at Rice University, and her co-authors, has a potential explanation for what might have happened - liquid lakes on the Red Planet would have hid under small, seasonal ice sheets similar to the way they do in Antarctica on Earth.
Your guide to February's full Snow Moon, from peak times to skywatching highlights.
NASA just postponed a spacewalk because of a medical concern with an astronaut. Here's how the agency has handled such issues in the past.
Astronomers discovered a cloud of hydrogen gas that’s devoid of stars. Held together by an invisible halo of dark matter, the starless cloud may elucidate its nature.
The Vera Rubin Observatory has found 19 new "superfast rotator" asteroids, including the fastest-spinning big space rock ever found.
It looks like NASA's Mars Sample Return (MSR) mission has come to a bureaucratic end. The mission was to be the crowning achievement in the study of Mars and all the questions surrounding its ancient habitability. But the US Congress has drastically cut the mission's funding.
Auroras may be visible from Alaska to New York as incoming coronal mass ejections and high-speed solar winds could trigger geomagnetic storms tonight.
Gerard Butler and Morena Baccarin return in an epic sci-fi survival sequel to 2020's surprise hit, "Greenland".
"We're going to do it in three years, and we're going to do it for a ridiculously low price."
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