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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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With no other galaxies in its vicinity for ~100 million light-years in all directions, it's as isolated and lonely as a galaxy can be.
In 1974, Hawking showed that black holes aren't stable, but emit radiation and decay. Nearly 50 years later, it isn't just for black holes.
And why you, a non-expert, should absolutely not consider "explaining what you know" to an actual expert in the field.
The concept of ‘relativistic mass’ has been around almost as long as relativity has. But is it a reasonable way to make sense of things?
Memorial day is a time to remember veterans killed in the line of service. These spaceflight heroes deserve to be remembered, too.
It's been 100 years since we discovered that the Universe was expanding. But if it's expanding, then what is it expanding into?
If our Universe were born a little differently, there wouldn't have been any planets, stars, galaxies, or chemically interesting reactions.