They're not actual spiders, of course, but rather strange geological features.

The natural history-themed sale on Wednesday features a 54-pound hunk of Mars estimated at $2 million to $4 million.

Mars has long been a symbol of humanity’s curiosity and ambition. Once the backdrop for science fiction tales, it’s now the focus of real-world plans for exploration, colonization, and survival. But ...

Two meteorites found in the Sahara in 2023 might be from Mercury, a study suggests, but doubts remain due to how little is known about the planet closest to the sun.

This Mars rock is up for auction at Sotheby's in New York City this week, which is why it's currently on display in the Upper ...

Without enough liquid water on the surface, a planet's atmosphere can become choked with carbon dioxide, raising temperatures ...

A giant rock from Mars and a Jurassic-era dinosaur skeleton are set to go under the hammer at Sotheby’s this week.

One lucky bidder will soon fork over millions of dollars to take home NWA 16788, a 54-pound (24-kilogram) Martian meteorite.

Mars, the Red Planet, may have been much wetter in the distant past than scientists ever imagined. A groundbreaking discovery ...

Mariner 4, built by JPL in Pasadena, took the images on July 14, 1965. One of the mission's leaders reflects on decades of ...