A pair of quasars that existed when the universe was only 3 billion years old has been spotted by the Hubble Space Telescope.

Coverage of the launch is expected to begin at 11 a.m. ET and will be added to this story in the video player above. The ...

Estimates of how fast the universe is expanding disagree. Could a new form of dark energy resolve the problem?

Vaccines delivered through a puff up the nose or into the mouth could be even more effective than shots at protecting people ...

It will take Europa Clipper 5½ years to reach Jupiter, where it will slip into orbit around the giant gas planet and sneak close to Europa during dozens of radiation-drenched flybys.

Scientists identify faint black holes in galaxies that formed during the early days of the universe, using imagery from the ...

NASA's Chandra X-ray space telescope has spotted the cosmic serial killer that, like Michael Myers, is back for a sequel, ...

NASA's Europa Clipper spacecraft lifted off Monday from Kennedy Space Center in Florida aboard a SpaceX Falcon Heavy rocket, ...

NASA’s Europa Clipper, the largest robotic probe the agency has ever built, rocketed into space Monday on a mission to ...

A spacecraft that will hunt for signs of alien life on one of Jupiter’s icy moons has blasted off from Cape Canaveral, ...

The space agency collected imagery from Hubble over a roughly 90-day period between December 2023 and March 2024 as the telescope focused on the largest known ...