From UFOs to voices in their heads, astronauts have reported some incredible stories.
Scientists may have discovered a second type of dark matter that is diverse.
Recently released CIA documents show that Kennedy requested highly classified documents pertaining to UFOs 10 days before his assassination.
Take a look at images captured by both NASA and Google Earth that currently cannot be explained by scientists.
From black holes and dark matter, to the speed of light and the multiverse, this year has produced some baffling astronomical discoveries.