From eerie blue spirals to ghostly green beams of light, the Subaru star camera keeps capturing mysterious scenes in the night skies over Hawaii.
Interstellar travel would require major investments. Instead, first we should examine the objects that arrive in our solar system from interstellar space.
A recent study by astronomers shows how telescopes and their corresponding observatories emit significant amounts of greenhouse gas.
A new Harvard led project aims to find scientific proof of extraterrestrial life, including examining reports of "Unidentified Aerial Phenomena."