Astronomers have detected a thin atmosphere around a tiny celestial body in the outer solar system for the first time — an object previously thought to be too small to support the presence of an ...

WASHINGTON, May 4 (Reuters) - In the far reaches of our solar system - beyond the outermost planet Neptune - resides a host of icy and desolate celestial bodies. Among these objects, only the dwarf ...

Solar flares are a fascinating thing and have a profound effect on what astronomers refer to as "space weather." These events vary with the sun's 11-year solar cycle, releasing immense amounts of ...

Add Yahoo as a preferred source to see more of our stories on Google. An artist's impression shows (612533) 2002 XV93 passing in front of a background star. - Ko Arimatsu/NAOJ Astronomers have ...