"Rootless cones form when lava flows over wet or icy ground, causing it to boil and explode," said Dundas. "The region around ...

The northern plains of Mars, marked by thousands of mounds and hills, hold significant evidence of the planet's watery past.

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but get a telescope and you can spot Neptune and Uranus.

NASA's Curiosity rover has made a groundbreaking discovery on Mars by uncovering pure sulfur crystals within a broken rock.

On Earth, we can use data from hundreds and even thousands of seismometers to triangulate the location of an earthquake. On ...

Thousands of mounds and hills in Mars' barren northern plains are full of clay minerals, providing evidence that the rocks ...

Buttes and mesas in Mars' Chryse Planitia contain clay minerals made from liquid water interacting with the rock nearly 4 ...

Six planets are parading across the sky, appearing as some of the night's brightest stars. A few easy tips can help you ...

Four planets will be in the parade in January, while seven will align in February. Here's how to see the events.

Directly to the right of Orion is Jupiter and left of it is the unmistakable red disc of Mars. The best time to view the ...

"In January, you'll have the opportunity to take in four bright planets in a sweeping view" said Preston Dyches of NASA's Jet ...