ScienceScientists measure radiation left behind from Big Bang using POLARBEAR Telescope looks at the universe's oldest light for clues to its structure and history. Scientists around the world use telescope in Chile to gaze at the universe's ancient illumination.by Jim Algar
ScienceOrionids meteor shower expected on Tuesday morning (courtesy Halley's Comet): Here's how and when you can watch itby Rhodi Lee
ScienceNASA Mars Odyssey orbiter watches Siding Spring comet zip past at a hair's breadthby Rhodi Lee
SciencePartial solar eclipse this week: Keep your eyes peeled if you live in North Americaby James Maynard
ScienceBig bully: Milky Way steals precious star-forming gases from neighboring dwarf galaxiesby Rhodi Lee
ScienceNASA preps for Comet Siding Spring's Mars flyby: Why scientists are going gaga over itby James Maynard
ScienceX-37B touches base finally: What was the secretive space plane up to for nearly 2 years in orbit?by James Maynard
ScienceSiding Spring comet Mars flyby 2014: How and when to watch this once-in-a-million-years eventby Jim Algar
ScienceSaturn moon Mimas may be hiding subterranean ocean: Will alien life forms be found?by Jim Algar