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.

lunar horizon glow clementine
Earth, the only rocky planet with a large, massive satellite, is greatly affected by the Moon. Destroying it would cause 7 major changes.
epsilon eridani comet storm
Straddling the bounds of science and religion, Newton wondered who set the planets in motion. Astrophysics reveals the answer.
Image of a galaxy cluster with a purple haze showing dark matter, surrounded by numerous distant stars and galaxies against the dark backdrop of space.
How do normal matter and dark matter separate by so much when galaxy clusters collide? Astronomers find the surprising, unexpected answer.
smbh growth evolution from direct collapse seed
Even in the very early Universe, there were heavy, supermassive black holes at the centers of galaxies. How did they get so big so fast?
Often viewed as a purely theoretical, calculational tool only, direct observation of the Lamb Shift proved their very real existence.
Webb’s image of NGC 1512 shows a face-on barred spiral galaxy anchored by its central region, which is circular and shows a bright white point at the center with blue and yellow circles around it. The galaxy’s large bar is crossed by filamentary dust lanes that extend diagonally to the top left and bottom right. The bar is connected to a dense oval-shaped ring of orange spiral arms that start at the edges of the bar
In July of 2022, the first science images from JWST were unveiled. Two years later, it's changed our view of the Universe.
A large circular particle accelerator with several cables and machines is where engineers work inside and around the structure. The facility, dedicated to solving the muon g-2 anomaly, has platforms and specialized equipment surrounding the central structure.
A longstanding mismatch between theory and experiment motivated an exquisite muon measurement. At last, a theoretical solution has arrived.