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New research revives dissident views of the universe's foundation
NASA wants to fend off doomsday asteroids
Two astronomers recall almost mistaking light from the big bang for pigeon droppings
Scientists grapple with
Montserrat's live volcano
weeks. In this episode: Martian Ancestors?, China Moon Landing, Greenland's Grand Canyon, ISS Printer and Tabletop Big Bang.
Scientists may soon glimpse the universe's beginnings by studying the subtle ripples made by gravitational waves
shows the mathematical viability of a collapsing universe before the Big Bang. Steve Mirsky reports.
On the March 12 episode of The Big Bang Theory , a mock copy of Scientific Americanof gravity waves in the cosmic microwave background, the light left over from the Big Bang.Almost 600 million years ago animal evolution demonstrated an unmatched burst of creativity. Has the mechanism of evolution altered zn ways that prevent fundamental changes in the body plans of animals?Signal of gravitational waves was too weak to be significant, studies suggest.Philip and Phylis Morrison review the way the universe came into existence and how it continues to evolve.Premature hype over gravitational waves highlights gaping holes in models for the origins and evolution of the Universe, argues Paul Steinhardt.New theory calls into question whether we'll ever know what the universe was like before the big bang, and the disappearance from the night sky of stars, galaxies , and any evidence the Big Bang ever happened
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