Visible on the planet itself is a dark patch near the top, marking the frigid northern polar cap, where temperatures dip to ...

Astronomers have discovered the earliest seeds of rocky planets forming around a baby sun-like star, an unprecedented ...

CAPE CANAVERAL, Fla. — Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby ...

Below the red section is purplish-brown terrain, which has a high concentration of silicates and a low concentration of iron, the statement notes. The difference in colors also stems from properties ...

UW-Madison engineers identify simulation flaws in rover testing, revealing how Earth's gravity affects sand and rover ...

For sale: A 54-pound (25-kilogram) rock. Estimated auction price: $2 million to $4 million. Why so expensive? It's the largest piece of Mars ever found on Earth.

The red, brown and gray hunk is about 70% larger than the next largest piece of Mars found on Earth and represents nearly 7% of all the Martian material currently on this planet, Sotheby’s says.