Is the camera tricking us, then? Mostly not. Lemmon traces the blue to the ground itself. Rocks scoured clean of dust and ...

Why is Mars known as the Red Planet? The answer lies in its striking reddish glow, visible even from Earth. The surface of Mars is covered with iron oxide - commonly known as rust - which gives it a ...

NASA confirms that Mars has air, but its composition and extremely low pressure raise a far more serious question: could a human survive even a single breath on the Red Planet? As the agency pushes ...

A new study of the oddest cloud on Mars, which reappears every year at the Arsia Mons volcano, says that "exotic physics" is ...

Mars is red … but why? Mars has a distinctive reddish hue when seen in the night sky. And indeed, rovers and landers on the surface also see a vast reddish-brown landscape. Scientists had determined ...

Earth-based experiments on iron-sulfur alloys thought to comprise the core of Mars reveal details about the planet’s seismic properties for the first time. This information will be compared to ...

Add Yahoo as a preferred source to see more of our stories on Google. Siccar Point, photographed by the Curiosity rover, is near Mars' Gale Crater. NASA/JPL-Caltech/MSSS; Processing & License: Kevin M ...

Scientists may finally have the answer to the question of why Mars is red. Mars has captivated scientists and the public alike for centuries. One reason is the planet’s reddish hue, earning the fourth ...

Mars is by far the most Earth-like planet in the solar system… but that's not saying much. We know that Mars once hosted oceans, rivers, lakes, streams. It had a thick, carbon-dioxide-rich atmosphere.

Ask someone on Earth for the time and they can give you an exact answer, thanks to our planet's intricate timekeeping system, built with atomic clocks, GPS satellites and high-speed telecommunications ...