A new paper released today documents the first soil, airfall dust, and rock fragment samples collected by NASA for return ...

The rover's 26th sample, known as "Silver Mountain," has textures "unlike anything we've seen before," NASA says.

Blood Falls in Antarctica flows unpredictably with iron-rich, salty water. Microbes inside survive without sunlight.

The captivating scene was a result of a rare "parade of planets" that has been drawing the attention of skywatchers worldwide ...

Here’s what you should know when you go outside to see for yourself: Yes, the planets are indeed lined up across our sky. No, ...

There are many obstacles to overcome before humans can set foot on Mars, including problems surrounding launch mass and ...

The Martian dichotomy came to light in the 1970s following the Viking Probe's transmission of remarkably detailed Martian ...

You’ll find several bright planets, stars and obvious constellations in the February evening sky. The most obvious constellation this month is Orion. To find Orion, face south and look for Orion’s ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

The new moon of January will be at 7:36 a.m. Eastern Time on Jan. 29, according to the U.S. Naval Observatory, and two days ...

Harvard scientists explain how Mars had warm spells billions of years ago, allowing rivers and lakes to exist.

Did famed German-American aerospace engineer Wernher von Braun actually predict Elon Musk would rule Mars? The answer might ...