Doubts grow about the biosignature approach to alien-hunting
14
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No, aliens haven’t visited the Earth. Why are so many smart people insisting otherwise?
29 votes -
How a Harvard professor became the world’s leading alien hunter
12 votes -
Harvard professor Avi Loeb has found fragments of a meteoroid that he believes could be from a spacecraft from another civilization or some technological gadget
33 votes -
Dr. Angela Collier, theoretical physicist, discusses aliens, crackpots, and Avi Loeb
18 votes -
USA urged to reveal UFO evidence after claim that it has intact alien vehicles
48 votes -
US finds no evidence of alien technology in flying objects, but can’t rule it out, either
13 votes -
Harvard astrophysicist says 2017 interstellar object sighting was humanity’s first contact with an artifact of extraterrestrial intelligence
12 votes -
Does the ISS have any procedures in place for alien contact?
Unlikely as it is, what would they do if a non human vessel suddenly approached or if a little green man knocked on the door?
15 votes -
My dad launched the quest to find alien intelligence. It changed astronomy
9 votes -
The pitfalls of searching for alien life
6 votes -
Will we find extraterrestrial life on ice worlds? Why Europa is the place to go for alien life.
4 votes -
Fermi Paradox great filter: Rare intelligence
9 votes -
Where are all the aliens? | Stephen Webb
2 votes -
New model predicts that we’re probably the only advanced civilization in the observable universe
20 votes