Astronomers Glimpse Cosmic Dawn, When The Stars Switched OnFor the first time, astronomers have glimpsed the dawn of the universe 13.6 billion years ago when the earliest stars were just beginning to glow after the Big Bang.
Galaxy Count May Now Top 2 Trillion Across UniverseThought the universe was crowded with 100 billion to 200 billion galaxies? Try 1 trillion or even 2 trillion galaxies and more.
25 Mind-Bending Images From Hubble Space Telescope's 25-Year MissionHubble, the world's first space telescope, was launched April 24, 1990 aboard the space shuttle Discovery. Here are 25 of our favorite images from Hubble's amazing -- and continuing -- quarter-century mission.
Our Universe Is Ending Sooner Than We Thought, Scientists SayAccording to a new study, our universe is bound to be ripped to shreds in the next tens of billions of years -- a relatively short span of time in the cosmological scale of things.
Stephen Hawking: 'God Particle' Could Destroy Universe, If Higgs Boson Research Ever Got Big EnoughRenowned physicist Stephen Hawking believes the recently discovered Higgs boson, also known as the "God particle," has the potential to unravel the universe, at least theoretically, as he writes in the forward of a new book on space travel.