Astronomers Upgrade Their Cosmic Light Bulbs
Pasadena CA (JPL) Mar 30, 2015 - The brilliant explosions of dead stars have been used for years to illuminate the far-flung reaches of our cosmos. The explosions, called Type Ia supernovae, allow astronomers to measure the distances to galaxies and measure the ever-increasing rate at which our universe is stretching apart. But these tools aren't perfect. In the cosmic hardware store of our universe, improvements are ongo ... more
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