This puzzle is known as the problem of time, and it remains one of the most persistent obstacles to a unified theory of ...

Read a sci-fi short story every month and join a virtual community of fellow science fiction fans! NASA has given its ...

The second of two SpaceX Falcon 9 rockets launched on Saturday (Feb. 21) completed a record-breaking 33rd re-flight. SpaceX launched two more batches of Starlink satellites on Saturday (Feb. 21), and ...

If launched in 2035, a spacecraft performing such a maneuver could fly by 3I/ATLAS by 2085. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

It runs from March 6 through March 9, with another opportunity on March 11. If Artemis 2 can't hit any of those dates, NASA ...

Why do some places wait 1,000 years to see a total solar eclipse while others get two in a decade? The surprising orbital mechanics behind where eclipses happen — and don't.

Scientists suspect that a rapidly spinning, highly magnetic neutron star, or "pulsar," dwells at the heart of the Milky Way.

The Lunar Gateway is planned space station that will orbit the moon. It is part of the NASA‑led Artemis program. Artemis aims ...

The reality is a very different story. Exposure to the unmediated Martian environment isn't just hostile to human beings; ...

Will this finally be the time we learn what alien skeletons are in the U.S. government's closet? Don't count on it.

Using the James Webb Space Telescope and the Atacama Large Millimeter/sub-millimeter Array , astronomers have investigated 70 ...

Using microorganisms to mine meteorites could be an effective way to extract precious metals in space, scientists say. This ...