The discovery of more than 15,000 kilometers of ancient riverbeds on Mars suggests that the Red Planet may once have been ...

Mars formed 4.6 billion years ago along with the solar system when a nebula collapsed and dust clumped together to form the sun, planets, asteroids and comets.

Mars formed slowly over 20 million years - drawing in particles of asteroids up to 1,200 miles in diameter that SMASHED into its core. Mars formed over a much longer period than originally ...

We think Mars formed much, much faster than the Earth did.” Scientists often look to Mars to study the early solar system precisely because of how fast it is thought to have formed.

The new images by the Curiosity rover on Mars show "dramatic evidence" of ancient groundwater in crisscrossing low ridges, ...

The cause of a mysterious rock formation on Mars that NASA deemed "an enigmatic pile of eroding sediments" and UFO hunters strongly believe is an extraterrestrial spacecraft was likely caused by ...

The thick, mineral-rich layers of clay found on Mars suggest that the Red Planet harbored potentially life-hosting ...

The place where Mars formed sat somewhere in-between those sections. There was still plenty of iron and nickel in its vicinity, but there was also room for lighter elements such as oxygen and sulfur.

Mars might not always have been Earth’s red-hot neighbor. The red planet may have formed much farther away from the sun and been pushed into its current spot by Jupiter’s gravitational force ...

One of the Red Planet's most mysterious landforms is probably 2 billion years older than has been thought, suggesting it may have had a volcanic origin, a new crater count finds.Scientists ...

NASA's Mars Reconnaissance Orbiter snapped the uncanny photo in December. Eyes are formed by craters. A hill with a "V-shaped collapse structure" resembles a snout.

We might be wrong about how Mars formed, scientists have said. The Red Planet may have taken much longer to form, and done so in an unexpectedly violent way, according to new research.