Our Milky Way could have many more satellite galaxies than we've detected so far. They're just too faint to be seen.

I/Atlas was first spotted on July 1 by the Asteroid Terrestrial-impact Last Alert System (Atlas) survey telescope in Río ...

Quirks & Quarks features our ever-popular listener question show, where we find experts to answer your questions. But here are ten mysteries that science has yet to answer.

The LMC’s mass is only about 15% of the Milky Way’s. But the team found that the satellite galaxy has a gravitational pull, perpendicular to Andromeda, ...

Earth is set to spin faster this summer, making July 9, July 22, and August 5 slightly shorter than usual. Discover why it’s ...

In the coming weeks, Earth is expected to rotate slightly faster than usual, causing several days to be marginally shorter.

But in recent years, scientists have reported variations in Earth’s rotation. In 2020, they found that Earth was spinning ...

It's possible that Mars' moons were originally asteroids that were captured by the planet's gravitational pull. There's also ...