A nameless mesa in a strange Martian landscape once stood at the center of a swirl of alien conspiracy theories. In a low-resolution snapshot from NASA’s Viking 1 spacecraft, taken in 1976, the ...

Today, Mars is known as the red planet, for its rust-colored desert landscape. Once upon a time, Mars was a very different place. It had complex waterways and, possibly, ancient aliens. Researchers ...

Henrique Alvim Corrêa’s Illustrations for The War of the Worlds (1906) In 1610, Galileo wrote in Sidereus Nuncius (The Starry Messenger) about the similarities between the Moon and Earth that he spied ...

We might be looking for life on Mars in the wrong place, scientists suggest. Extraterrestrial life is more likely to be lurking in Mars' ice than on its rocky surface, according to a new paper in the ...

The Agency gets hands-on with an alien autopsy in Absolute Martian Manhunter #9, peeling back layers of mystery and fascia this Wednesday.

Monisha Ravisetti was a science writer at CNET. She covered climate change, space rockets, mathematical puzzles, dinosaur bones, black holes, supernovas, and sometimes, the drama of philosophical ...

At first, figuring out how pebble-sized rocks organize themselves in evenly-spaced patterns in sand seemed simple and even intuitive. But once Andrew Leier, an assistant geoscience professor at the U ...