Humans wouldn't last long in space without significant technological assistance, does that mean we need to alter human biology to prepare it for future space travels?
This is how our bellowed planet looks like on Martian twilight sky. It's the brightest point of light in the sky, and NASA's curiosity rover took a picture.
Spectacular video made of hundreds of stitched together images taken by the Mars Express spacecraft showing the Red Planet in three dimensions like never before.
