California is home to 11 otherworldly spots that defy explanation and leave visitors in awe. Ever wanted to visit Mars ...

These 11 surreal natural wonders in California will transport you to places that look like they belong on another planet.

Mars, once a planet abundant with water, now lies as a barren, arid expanse. Its surface features reveal a history where ...

"What If is an epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a ...

A famous illustration of Saturn's moon Titan got it all wrong. Never mind -- what we imagine space to be, and what we know it ...

Every 26 months, the orbits of Earth and Mars allow us a closer look when Mars is at opposition — which will happen on Jan.

Hikers were seen enjoying an early morning walk in the snowy landscape in the Harz mountain range in northern Germany on ...