Humans have long speculated about alien life, but rarely about how extraterrestrial beings perceive us. Avi Loeb suggests Earth may disappoint. Renewed interest in UFOs, partly driven by high-profile ...
Comet 41P/Tuttle-Giacobini-Kresak has begun acting a little unusually, but there are likely natural explanations before we go ...
The third known visitor from another star system, Comet 3I/ATLAS, has been racing through the Solar System with just enough weirdness to ignite a familiar debate: is it natural or could it be ...
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