Ethan Siegel

Ethan Siegel

A theoretical astrophysicist and science writer, host of popular podcast “Starts with a Bang!”

Ethan Siegel 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.

Two tall, rectangular scientific instruments, including a NASA nuclear reactor prototype, stand on the rocky lunar surface with Earth visible in the background against the blackness of space.
There are real concerns with long-term power generation on the Moon; nuclear could be the answer. But for NASA, will the cost be too high?
A hexagonal telescope with a gold exterior and an open, black interior is shown against a black background, highlighting NASA habitable worlds observatory science.
At the end of July, hundreds of scientists convened to plan NASA's upcoming astrophysics flagship mission. Will the US allow it to happen?
Two supermassive black holes on an inevitable death spiral push the limits of Einstein's relativity. New observations reveal even more.
creation of adam sistine
When it comes to our Universe's origins, scientists discuss the Big Bang, cosmic inflation, and other theories. Why doesn't "God" come up?
laniakea
On the largest scales, galaxies don't simply clump together, but form superclusters. Too bad they don't remain bound together.
Abstract digital artwork featuring concentric blue circles, lines, and green geometric shapes over a dark blue and black textured background, evoking a sense of vibe physics within its captivating composition.
The conversation you're having with an LLM about groundbreaking new ideas in theoretical physics is completely meritless. Here's why.
5000 exoplanets
Somewhere, at some point in the history of our Universe, life arose. We're evidence of that here on Earth, but many big puzzles remain.