Two major NASA missions that have launched in the past year are revealing a communications weakness in space.
Three astronauts who spent six months in space constructing China's new space station are set to return home on Sunday (Dec. 4).
Arianespace will launch five Earth missions with Vega C between 2024 and 2026 on behalf of the European Union.
The full moon will appear in very close proximity to a brilliant Mars in the evening of Wednesday (Dec. 7) as the Red Planet reaches opposition.
The U.S. Federal Communications Commission has approved SpaceX to deploy 7,500 next-generation Starlink internet satellites — one-quarter of the company's planned constellation.
Two NASA astronauts will conduct a spacewalk Saturday (Dec. 3) to install new solar arrays on the International Space Station, and you can watch the action live.
The U.S. Air Force will unveil the new Northrop Grumman-built B-21 Raider stealth bomber today (Dec. 2), an aircraft that has been called "the most advanced military aircraft ever built."
The three astronauts about to take control of China's Tiangong space station have an action-packed six months ahead of them.
A Martian megatsunami may have raced across the Red Planet after a cosmic impact similar to the one that likely ended Earth's age of dinosaurs, a new study finds.
Less than two weeks after a bright fireball lit up the sky above the Great Lakes, another spectacular meteor impressed skywatchers in the Northeast.
Disney and Marvel Studios release the first trailer for next year's "Guardians of the Galaxy Vol. 3."
Here are the best space and science fiction movies and TV shows to watch on Disney Plus in December.
UFOs are making headlines again, but lost in the hype and ruckus is the question of when this all started and how we got to this point.
Astronaut Satoshi Furukawa will be "appropriately" punished following a flawed research investigation, according to media reports citing the Japan Aerospace Exploration Agency.
A newly released photo from the Hubble Space Telescope captures a spectacular galaxy merger in progress.
On Dec. 2, 1995, NASA launched the Solar and Heliospheric Observatory, also known as SOHO. See how it happened in our On This Day In Space video series.
A SpaceX Dragon that twice splashed down has now landed for its last time — in Chicago. The spacecraft, which flew to the International Space Station, arrived at the Museum of Science and Industry.
A new interactive map of the cosmos allows users to journey from our galaxy to the most distant sources of light that existed just after the Big Bang.