A strange interstellar comet discovered last year and speculated by a prominent astronomer to be an alien spacecraft could be older than our Solar System, according to a new study. The comet, first ...
The next major search for extraterrestrial intelligence might involve putting Moon dust under a microscope rather than pointing a radio telescope toward the stars. A new study led by SETI Institute ...
An online report claims an unidentified object approached the ISS, but its footage, distance and trajectory remain unverified ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results