The First Stars in the Universe
Exceptionally massive and bright, the earliest stars changed the course of Cosmic history
Features
The Life Cycle of Galaxies
Astronomers are on the verge of explaining the enigmatic variety of galaxies
Surveying Spacetime with Supernovae
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
Cosmological Antigravity
The Long-Derided Cosmological Constant-a Contrivance of Albert Einstein's-- may explain changes in the expansion rate of the universe
The Quintessential Universe
The universe has recently been commandeered by an invisible energy field, which is causing its expansion to accelerate outward Is it all over but the shouting?
The Fate of Life in the Universe
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.
Is Space Finite?
Conventional wisdom says the universe is infinite. But it could be finite, merely giving the illusion of infinity
The Universe's Unseen Dimensions
The visible universe could lie on a membrane floating within a higher-dimensional space
A Cosmic Cartographer
The Microwave Anisotropy Probe will give cosmologists a much sharper picture of the early universe
Echoes from the Big Bang
Scientists may soon glimpse the universe's beginnings by studying the subtle ripples made by gravitational waves
Exploring Our Universe and Others
This Century cosmologists will unravel the mystery of our universe's Birth-and perhaps prove the existence of other universes as well
Ripples in Spacetime
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
Plan B for the Cosmos
If the new cosmology fails, what's the backup plan?
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Making Sense of Modern Cosmology
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