Stellar plasma can smear alien radio signals before they escape their star system, making them harder for astronomers to detect.

Planets that once lived only in pulp novels and movie concept art are now turning up in real data. Astronomers are not just finding distant worlds, they are cataloguing places with molten surfaces, ...

Water may not be essential to support life, and an entirely different type of liquid could do the same in alien worlds, a new study claims. Until now, water has been considered a requirement for life ...

Add Yahoo as a preferred source to see more of our stories on Google. At the end of Alien: Covenant, David is given dominion over an entire spaceship full of human beings in cryostasis. We also see he ...

It's been more than four years now since the United States became the first nation in the world to achieve powered flight on another planet. Responsible for that is a little helicopter-style drone ...