The red, brown and gray hunk is about 70% larger than the next largest piece of Mars found on Earth and represents nearly 7% ...

In 2024, researchers transformed readings of an epic upheaval of Earth's magnetic field flipping 41,000 years ago into an ...

The bold question-askers at What If ponder what would happen if a new planet began forming near Earth. Why aren’t Italians as ...

Researchers suspect that two meteorites found in the Sahara Desert in 2023 may originally have come from Mercury, which would ...

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

In new research, University of California, Irvine astronomers describe how more than 200 known exoplanets are likely much ...

CAPE CANAVERAL, Fla. (AP) — The International Space Station’s first visitors from India, Poland and Hungary headed back to ...

Volcanic planets with static crusts, called Ignan Earths, can maintain liquid oceans and temperate climates favorable to life.

Engineers at NASA’s Jet Propulsion Laboratory in Pasadena, California, modified the backup Mariner 4 spacecraft to operate closer to the Sun, and on June 14, 1967, NASA launched Mariner 5 on a 127-day ...

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

Sometimes, in order to support an idea, you first have to discredit alternative, competing ideas that could take resources ...