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.

A digitally generated image of a glowing, elongated object framed by a translucent rectangle against a dark background with cosmic web-like structures.
On the largest cosmic scales, galaxies line up along filaments, with great clusters forming at their intersection. Here's how it took shape.
A giant, colorful ring of glowing lines suspended in space
Astronomers claim to have found structures so large, they shouldn't exist. With such biased, incomplete observations, perhaps they don't.
A map of a cluster of stars illustrating star birth.
Here in our Solar System, we only have one star: a singlet. For many systems, including the highest-mass ones, that's anything but the norm.
An image of a spiral galaxy with stars in the background, showcasing the mesmerizing beauty of cosmic formations.
The pattern 1, 1, 2, 3, 5, 8, 13, etc., is the Fibonacci sequence. It shows up all over nature. But what's the full explanation behind it?
An image of a planet with a moon, highlighting one of the first living worlds discovered.
Life became a possibility in the Universe as soon as the raw ingredients were present. But living, inhabited worlds required a bit more.
primordial black holes
Today, supermassive black holes and their host galaxies tell a specific story in terms of mass. But JWST reveals a different story early on.
A black and white photo of albert einstein laughing.
The most celebrated genius in human history didn't just revolutionize physics, but taught many valuable lessons about living a better life.