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

A 54-pound chunk of Mars-believed to be the largest Martian meteorite ever discovered on Earth-is hitting the auction block ...

The largest-known piece of Mars to be found on Earth will be up for bid and could be sold for up to $4 million at auction.

What makes the biggest planet so massive?

Astronomers have discovered over 100 new alien worlds so far this year — some many light-years away from Earth — that ...

WASHINGTON, June 25 (Reuters) - In addition to providing a trove of information about the early universe, the James Webb ...

Scientists have discovered a giant planet orbiting a tiny red dwarf star, something they believed wasn t even possible. The planet, TOI-6894b, is about the size of Saturn but orbits a star just a ...

Jupiter is already the biggest planet by far in our solar system, but new research suggests it was somehow once even larger than it is now. Twice as large, in fact. To put that into context, those ...

With its low density and unusually cool, methane-rich atmosphere, this planet offers a rare window into giant planet formation around small stars.

Astronomers announced Wednesday they have discovered a massive planet orbiting a tiny star, a bizarre pairing that has stumped scientists.

However, the planet found orbiting TOI-6894 is as large as Saturn, the second-largest planet in our solar system.

Jupiter is our solar system's biggest planet by far. It used to be twice as large: Study A recent study found that Jupiter was once twice the size that it is now, making it big enough to swallow ...