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Ethan Siegel
A theoretical astrophysicist and science writer, host of popular podcast “Starts with a Bang!”
Ethan Siegel is a Ph.D. astrophysicist and author of "Starts with a Bang!" He is a science communicator, who professes physics and astronomy at various colleges. He has won numerous awards for science writing since 2008 for his blog, including the award for best science blog by the Institute of Physics. His two books "Treknology: The Science of Star Trek from Tricorders to Warp Drive" and "Beyond the Galaxy: How humanity looked beyond our Milky Way and discovered the entire Universe" are available for purchase at Amazon. Follow him on Twitter @startswithabang.
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NASA's only flagship X-ray telescope ever, Chandra, still works and has no planned successor. So why does the President want to kill it?
Physicists just can't leave an incomplete theory alone; they try to repair it. When nature is kind, it can lead to a major breakthrough.
The least exciting of all eclipses, a penumbral lunar eclipse, foreshadows the spectacular show that April 8th's total eclipse will bring.
You can only create or destroy matter by creating or destroying equal amounts of antimatter. So how did we become a matter-rich Universe?
No matter how you define the end, including the demise of humanity, all life, or even the planet itself, our ultimate destruction awaits.
Harvard astronomer Avi Loeb claimed to track down and find alien spherules on the ocean bottom. Here's the sober truth.
Because of dark energy, distant objects speed away from us faster and faster as time goes on. How long before every galaxy is out of reach?