A pinkish tract of bedrock on the eastern shore of Canada’s Hudson Bay contains the oldest known rocks on Earth, formed 4.28 billion years ago, not long after the...

These images of Jupiter’s intensely volcanic moon, Io, taken five months apart, show the results of a titanic eruption, 400-kilometers (250 miles) across over...

New analysis of the Red Planet\’s terrain using NASA\’s Mars Reconnaissance Orbiter and Global Surveyor spacecraft observations reveals what appears to be...

An icy, unknown world might lurk in the distant reaches of our solar system beyond the orbit of Pluto, according to a new computer model.

Researchers said they discovered a batch of three “super-Earths” orbiting a nearby star, and two other solar systems with small planets as well. They said...

At its closest approach, Solar Probe will be 7 million kilometers from the sun, witnessing the Sun at 23 times wider than what we see it from Earth. The vessel will...

As astronomers become more adept at hunting for, and finding, exoplanets orbiting stars beyond the Solar System, international astronomers have figured out just what we...

“It could happen almost any time now. We now have the technological capability to identify Earth-like planets around the smallest stars.”

Is there a genocidal countdown built into the motion of our solar system? Recent work at Cardiff University suggests that our system’s orbit through the Milky...

Astronomers have discovered a distant “twin” solar system which looks very similar to our own. So far researchers have identified two planets very similar...

“In a very short time, we are going to be able to see a planet with the same mass as the Earth, although it’s going to be in an orbit much closer to its...