A Mars probe has snapped a peculiar image of the Red Planet's surface that looks like a giant tree stump, rings and all.
Researchers discovered nearly 1,000 mysterious 'filaments' of radio energy bursting from the Milky Way's center. Their origin remains unknown.
In 1195, monks recorded the first sighting of ball lightning in England. They described it as a "fiery globe threw itself down into the river."
Researchers have stimulated limb regrowth in frogs' amputated legs after giving them to a "cocktail" of drugs encased in a silicon stump called a "BioDome."