Where are all the aliens? Maybe they just don't want to talk to us
Where are all the aliens? Maybe they just don't want to talk to us
No sun, no problem? How life could thrive on moons of starless 'rogue' planets

In einem Reinraum des Johns Hopkins Applied Physics Laboratory in Laurel, Maryland, entsteht derzeit eines der ungewöhnlichsten Raumfahrzeuge, das je für die Erforschung unseres Sonnensystems gebau…
Where are all the aliens? Maybe space weather is scrambling their transmissions
Did Earth life actually begin on Mars? Asteroid impacts could let microbes planet-hop, study suggests
'War of the Worlds' in reverse? Mars dirt could help fight off a microbial invasion from Earth
Trump says US government will declassify its UFO files. Will we actually learn anything this time, or is this a distraction?
Life on Earth is lucky: A rare chemical fluke may have made our planet habitable
Did the Viking missions discover life on Mars 50 years ago? These scientists think so
Goodbye Goldilocks: Scientists may have to look beyond habitable zones to find alien life