Extraterrestrials

Astronomers find Earth-sized planet covered in volcanoes
Strange life forms create an “alien” ecosystem in an abandoned uranium mine
Undergrad develops AI to hunt for alien signals
Scientists discover animal that doesn’t need oxygen to live 
NASA considers stingray-like drone to fly the skies of Venus
MIT is leading the hunt for life in Venus’ atmosphere
Two dozen “superhabitable” exoplanets may be better than Earth
Is anybody out there?
How to talk to aliens