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Big Bounce Simulations Challenge the Big Bang
Detailed computer simulations have found that a cosmic contraction can generate features of the universe that we observe today.
Physicists Debate Hawking’s Idea That the Universe Had No Beginning
A recent challenge to Stephen Hawking’s biggest idea — about how the universe might have come from nothing — has cosmologists choosing sides.
A New Test for the Leading Big Bang Theory
Cosmologists have predicted the existence of an oscillating signal that could distinguish between cosmic inflation and alternative theories of the universe’s birth.
How the Universe Got Its Bounce Back
Cosmologists have shown that it’s theoretically possible for a contracting universe to bounce and expand. The new work resuscitates an old idea that directly challenges the Big Bang theory of cosmic origins.
Scientists Unveil New Inventory of Universe’s Dark Contents
The first major results from the Dark Energy Survey signal the start of a new era of cosmology.
Eva Silverstein’s Spirals and Strings
Daily bike rides, serendipitous interactions and long periods of solo thinking inspire this string cosmologist.
Physicists Hunt for the Big Bang’s Triangles
The story of the universe’s birth — and evidence for string theory — could be found in triangles and myriad other shapes in the sky.
Why the Big Bang’s Light May Have a Tilt
Scientists haven’t tested the Big Bang’s light for a revealing shift in 25 years. A new experiment aims to change that.
Joint Dust Analysis Deflates Big Bang Signal
No definitive evidence for cosmic inflation is found, but support remains strong for the theory even as critics highlight its shortcomings as an explanation for how and why the universe began.