The best reason to send humans to Mars isn’t for guts or glory—or the construction of colonies to safeguard against existential Earth-bound risks. Instead it’s to answer a single, simple question: Is ...

Scientists have discovered a mysterious hole on the surface of Mars, and they have no idea what lies inside it. This pit, ...

As space agencies race to set foot on the Moon, Mars, and elsewhere, a not-so-glamorous problem could be the key to success: the functionality of a rover’s wheels in alien dirt. When NASA’s Spirit ...

"The exploration of the moon is going to be a continuous activity." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. SYDNEY — Leaders of the world ...

As an astronomer studying the universe beyond Earth, I’m fond of “outside the box” views almost by default. But one of my favorites is whenever a spacecraft takes a snapshot of our home world and the ...