Longtime NASA astronaut Don Pettit is set to return from his fourth trip to space on Saturday night. Here are some of his ...

In a recent livestream from the International Space Station (ISS), viewers were left puzzled after spotting what looked like ...

A team of astronomers has detected what they call the most promising signs to date of a possible biosignature, or signs of ...

A camera affixed to the International Space Station recently spotted some curious symbols amid a barren desert landscape.

Researchers have developed a new coronagraph that could make it possible to see distant exoplanets obscured by light from their parent stars.

The Wall Street Journal has unveiled Elon Musk's intriguing strategies to repopulate our planet. Curious? Read on!