Gravity waves spread through space and time like ripples on a pond, warping the fabric of the universe as they pass. The largest waves emanate from the most cataclysmic events in the universe: stellar explosions, mergers of black holes, and the violent first moments of cosmological history. Or so the venerable theory of general relativity goes--although many predictions of Albert Einstein's theory of gravity have been proved, only indirect evidence for gravity waves has been found. [More]

Gravity waves spread through space and time like ripples on a pond, warping the fabric of the universe as they pass. The largest waves emanate from the most cataclysmic events in the universe: stellar explosions, mergers of black holes, and the violent first moments of cosmological history. Or so the venerable theory of general relativity goes--although many predictions of Albert Einstein's theory of gravity have been proved, only indirect evidence for gravity waves has been found. [More]

Gravity waves spread through space and time like ripples on a pond, warping the fabric of the universe as they pass. The largest waves emanate from the most cataclysmic events in the universe: stellar explosions, mergers of black holes, and the violent first moments of cosmological history. Or so the venerable theory of general relativity goes--although many predictions of Albert Einstein's theory of gravity have been proved, only indirect evidence for gravity waves has been found. [More]

Gravity waves spread through space and time like ripples on a pond, warping the fabric of the universe as they pass. The largest waves emanate from the most cataclysmic events in the universe: stellar explosions, mergers of black holes, and the violent first moments of cosmological history. Or so the venerable theory of general relativity goes--although many predictions of Albert Einstein's theory of gravity have been proved, only indirect evidence for gravity waves has been found. [More]

AP - NASA will test the powerful first stage of its new Ares moon rocket Thursday, a milestone in a program that has already spent $7 billion for a rocket that astronauts may never use.