The visible universe could lie on a membrane floating within a higher-dimensional space
Astronomers are on the verge of explaining the enigmatic variety of galaxies
Exceptionally massive and bright, the earliest stars changed the course of Cosmic history
Billions of years ago the universe was too hot for life to exist. Countless aeons from now, it will become so cold and empty that life, no matter how ingenious, will perish.
Exploding stars seen across immense distances show that the cosmic expansion may be accelerating-a sign that an exotic new form of energy could be driving the universe apart
Physicists have spent eight years and 365 million building a radically new kind of observatory to detect gravitational waves. but will it work? a trial run put it to the test
If the new cosmology fails, what's the backup plan?
Conventional wisdom says the universe is infinite. But it could be finite, merely giving the illusion of infinity
This Century cosmologists will unravel the mystery of our universe's Birth-and perhaps prove the existence of other universes as well
Scientists may soon glimpse the universe's beginnings by studying the subtle ripples made by gravitational waves
The Long-Derided Cosmological Constant-a Contrivance of Albert Einstein's-- may explain changes in the expansion rate of the universe
The Microwave Anisotropy Probe will give cosmologists a much sharper picture of the early universe