The Sun sets differently on Mars. Part of that is due to its distance from the star (an average of 142 million miles versus ...

"I'll always remember the first time I saw those iridescent clouds and was sure at first it was some color artifact." ...

Red-and-green-tinted clouds drift through the Martian sky in a new set of images captured by NASA's Curiosity rover using its ...

Carlos Slim is not the only one who has doubted that Elon Musk can achieve his plan to take humans to Mars before 2029 ...

In the coming years, an unprecedented number of people will leave planet Earth—but it’s becoming increasingly clear that deep ...