NASA astronauts Christina Koch and Jessica Meir will venture outside the International Space Station on Thursday or Friday (Oct. 17 or Oct. 18), agency officials said.
Right now, it's a solar system known only by the designation HD 17156. Before 2019 ends, it will bear an entirely different second moniker — perhaps one suggested by you.
A mysterious bird and its seemingly huge talons photobomb an all-sky camera's view of the cosmos in this lucky shot from the La Silla Observatory in Chile.
On Oct. 15, 1997, NASA launched the Cassini spacecraft on a mission to explore Saturn and its moons. See how it happened in our On This Day in Space video series!
We can minimize the chances of a catastrophic cascade of collisions if satellite designers and operators follow a few simple rules, according to the Space Safety Coalition.
Was Venus once covered in a liquid water ocean? A new study suggests it was not, which could diminish hope that eons ago, warm and wet conditions allowed life to arise on the planet.
China's Chang'e 4 mission has completed 10 lunar days of activity on the far side of the moon, returning new images and carrying out science tasks.
Observations of the interstellar Comet Borisov have been flooding in for six weeks, and the more astronomers duplicate one another's work, the more confident they are in their analysis of the object.
New infrared cameras and gel-based thrusters just might help future satellites dodge space debris, a new study finds.
A new video from NASA shows how a supernova explosion morphs and changes during a 13-year period, including unusually fast-moving shock waves.
The episode "Lines We Cross" ends with an old Soviet satellite crashing to Earth, sparking a new plot point for the show. But how realistic is it? We asked a scientist.
What appears to be a dazzling meteor lit up the sky over northeast China on Friday (Oct. 11), appearing as a brilliant fireball in surveillance video of the event.
A new meteorite addition to the Field Museum's collection resembles a malodorous mud brick, but it holds important clues about the origins of life on Earth.
Boeing has set a new launch date for the first orbital flight of its new commercial crew vehicle that will soon begin ferrying astronauts to and from the International Space Station.
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