Why Is Gravity Such a Weakling?
When the End is Just the Beginning: Exploring Cosmic Cycles
Discover why some theorists think our universe could one day be reborn, in an endless cycle of creation and destruction.
The Myth of the "Next Einstein"
Einstein’s fame arose from a perfect storm of science, culture, and personality, says physicist Paul Halpern.
The Unbearable Lightness of Gravity
What is gravitational energy, and can new experiments shed light on its elusive nature?
The Phantom Energy Menace: Is the Cosmos Doomed to a Big Rip?
The Big Bang’s Identity Crisis
New insights into the early history of the universe have some physicists saying that it is time to rename the Big Bang.