Comet 3I/ATLAS, only the third known visitor from beyond our Solar System, has been brightening far more rapidly than expected as it approaches perihelion, its closest point to the Sun.

The OSIRIS-REx spacecraft's name has been changed to OSIRIS-APEX for its new mission to asteroid Apophis. See its journey to ...

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

In about 5 billion years, our Sun will run out of hydrogen fuel and collapse into a dense, Earth-sized remnant called a white dwarf. Though it will no longer shine as it once did, this stellar core ...

SpaceX Sunday said it is stepping up its efforts to develop a simplified Human Landing System for NASA as it pursues a plan to return to the moon.

Colorado officials filed a lawsuit Wednesday claiming the relocation of U.S. Space Command to Alabama was illegally motivated by President Donald Trump's desire to punish Colorado for its mail-in ...

On November 2, 2000, the International Space Station welcomed its first long-term residents: NASA astronaut Bill Shepherd and two Russian cosmonauts, Yuri Gidzenko and Sergei Krikalev. The mission was ...

An interstellar comet that originated outside our solar system just made its closest pass of the sun, setting it on an outgoing path — but it’s not leaving our cosmic ...

For 25 years, the ISS has orbited Earth, but few know how close it came to disaster. A gripping new doc breaks the silence.

In a recent episode of the reality TV show "The Kardashians," Kim Kardashian said the Moon landings were faked. NASA is not ...

The Japanese Aerospace Exploration Agency lost contact with a probe orbiting Venus last year and officially calls it quits on the mission.

President Trump is the only person who can determine the winner of the space-oriented race to the Iron Throne.