A strange, starless object is forcing astronomers to rethink how galaxies are born. Using the Hubble Space Telescope, NASA ...

NASA said on Wednesday it was postponing a spacewalk at the International Space Station that was scheduled for Thursday, ...

As President Donald Trump renews calls for US control of Greenland, citing national security concerns, scientists said the ...

NASA canceled its first spacewalk of the year and may bring its crew back early from the International Space Station due to an onboard medical issue.

Both NASA’s James Webb Space Telescope and Chandra X-ray Observatory caught these two galaxies in a close embrace.

NASA’s SPHEREx telescope has combined 100+ infrared maps into the universe’s first all-sky cosmic atlas, revealing galaxies, interstellar clouds, and cosmic inflation patterns never seen before.

Over its planned two-year mission, the $488 million telescope will scan the entire night sky every six months and collect ...

NASA's SPHEREx telescope unveiled its first full-sky map of the universe, combining more than 100 infrared observations into ...

Our galaxy's supermassive black hole is famous for being one of the dimmest in the universe. Evidence from a new space ...

The scenes track the furious expansion of Kepler’s Supernova Remnant, the glowing remains of a star first spotted in 1604 by ...

NASA's SPHEREx Observatory has mapped the entire sky in 102 infrared colors, as seen here in this image released on Dec. 18, ...

Lunar Prospector launched on January 6, 1998, as the third mission within NASA’s Discovery Program, which emphasizes frequent ...