As Mars approaches opposition this month, it will become a dazzling spectacle in the night sky. See it at its best now, or ...

Alinda is one of the five largest near-Earth asteroids, coming closer than 9.3 million miles until the year 2200.

February 22, 2025 will be Charles Lyell’s 150th anniversary. This great Scottish geologist, who is buried in Westminster ...

On February 28 all seven of the other planets in the Solar System will appear in the night sky at the same time in a row. And ...

Geologically, Mars is very reminiscent of the moon. But it also looks a lot like the Earth. It all depends on who you ask.

NASA will explore two different strategies for fetching Mars rocks collected by the Perseverance rover, and there's a chance ...

NASA sees two paths for saving its beleaguered plan to retrieve materials from the Red Planet but won’t choose between them ...

The newcomer replacing Pluto presently goes by “Planet Nine.” If and when it finally shows up, it will get the honor of a ...