A 54-pound meteorite from Mars is expected to fetch up to $4 million when it goes up for auction later this month at ...

In all, there are only 400 known Mars rocks on Earth, comprising less than 1% of all known space rocks on the Blue Planet.

Paul Wiegert, a Western physics and astronomy professor, shares insights on asteroid 2024 YR4 and the likelihood it will hit Earth or the Moon.

There are currently no known asteroids on an impact course with the planet. Still, scientists are keeping a watchful eye on ...