The astronauts of NASA's Artemis III mission visited the Oval Office on Thursday (Oct. 28) and posed for a few photos with the president. Their visit came nearly six months to the day after that of ...

The icy object, known as 2026 ED138, is likely between 600 and 1500 kilometers (373 to 972 miles) wide, scientists say. It's therefore probably big enough to be sculpted into a sphere by its own ...

SpaceX conducts a six-engine static fire test with its Flight 15 Starship upper stage on Oct. 27, 2026. (Image credit: SpaceX) The Ship 42 tests come on the heels of a successful 33-engine static fire ...

On this day in space! Aug. 28, 1993: Galileo spacecraft flies by asteroid Ida on the way to Jupiter only to find a tiny moon!

Earth would be terrifying if we celebrated Halloween every 11 hours, a possibility on a super-Earth investigated by the James Webb Space Telescope (JWST). That is, if this extrasolar planet, or ...

The U.S. Air Force has recovered experimental cargo launched aboard SpaceX's mysterious Starfall capsule, marking a step forward in the effort to assess the viability of rapid, point-to-point ...

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The James Webb Space Telescope captured a spectacular star-forming region glowing 161,000 light-years from Earth in a satellite galaxy of the Milky Way.

Big Iron's first stage will be reusable. The upper stage will serve as a data-center satellite after reaching orbit. (Image credit: Cowboy Space) That rocket is called Big Iron, Bhatt told us on ...

The subtle phenomenon can be seen reflected in the 15-meter (49-foot) primary dish of the SEST telescope along with the myriad stars of the Southern Hemisphere, as the dome of the ESO's 3.6-meter ...

Space tourism is about to make a comeback.

Joshua Kutryk will venture outside the International Space Station on Oct. 29, on the first spacewalk by a Canadian astronaut in more than seven years. Here's how to watch it live.