Why Are We Here? The Just-Right Efficiency of Fusion
The fusion of hydrogen to helium that powers the stars proceeds at a precise rate. A little faster or slower and there'd be no life in the universe.
Apr 13, 2012
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Jon Plotkin
Supernovas Enable Life and Provide a Measure for the Universe
Exploding stars distribute heavy elements such as oxygen and carbon that are essential to life. The Chandrasekhar limit gives us a cosmic measuring stick.
Mar 29, 2012
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Jon Plotkin
How Kepler Mission Discovered a Double Sun Planet, like Tatooine
NASA's Kepler spacecraft discovered a planet orbiting the eclipsing binary star Kepler-16 every 229 days. How did astronomers make this discovery?
Sep 22, 2011
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Paul A. Heckert
The Dark Night: Foundations of Modern Astrophysics
This is the second article in a series exploring the mystery of Dark Matter and Energy and the future of astrophysics.
Jul 18, 2011
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Scott Potter
White Holes
Scientists can numerically travel back in time, but whether or not these space glitches actually exist remains an mystery of the cosmos.
May 16, 2011
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Hugh Saddler
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