COLORADO SPRINGS — Citra Space said it raised $15 million in a Series A funding round led by Washington Harbour Partners, as the Colorado-based startup looks to expand its software platform for ...

As humanity heads back to the moon, scientists are trying to understand the impact that being in space can have on the brain. Research has shown that spaceflight can temporarily change the brain’s ...

3I/ATLAS, a mysterious interstellar object racing toward the Sun, is baffling scientists with its speed and origin. Some researchers suggest it could even be alien-made, drawing comparisons to probes ...

During a mission in orbit, a simple spinning object began flipping over and over — even though no force was acting on it. The behavior was so strange that it was kept secret for years, raising ...

Gravity is so weird that it essentially forces cosmologists into subscribing to one of two equally radical conclusions: dark matter exists, or fundamental gravity rules need massive revisions. To ...

Find out what's up in your night sky during May 2026 and how to see it in this Space.com stargazing guide. When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

In November 2026, NASA’s Voyager 1 spacecraft will become the first human-made object to travel a full light-day from Earth. Nearly 50 years after its launch, this milestone highlights the vastness of ...

Use a brim or raft. These are slicer settings that add extra material around the base of your print to help it stick to the ...