Starts With A Bang

A dense starfield, with various colored stars shimmering through a dark cloud-like formation, lies against a deep black background in the mysterious zone of avoidance.
The Universe is out there, waiting to be discovered

Our mission is to answer the biggest questions of all, scientifically.

What is the Universe made of? How did it become the way it is today? Where did everything come from? What is the ultimate fate of the cosmos?

For most of human history, these questions had no clear answers. Today, they do. Starts With a Bang, written by Dr. Ethan Siegel, explores what we know about the universe and how we came to know it, bringing the latest discoveries in cosmology and astrophysics directly to you.

with Ethan Siegel
Ethan Siegel is an award-winning PhD astrophysicist and the author of four books, including The Grand Cosmic Story, published by National Geographic.
Full Profile
A bald man with a long beard and handlebar mustache gestures with his hands against a backdrop of an upside-down cityscape wearing a purple shirt.
Groupthink in science isn’t a problem; it’s a myth
Scientists are notoriously resistant to new ideas. Are they falling prey to groupthink? Or are our current theories just that successful?

Ethan Siegel

solar system model
Two colorful, semi-transparent spheres, one blue and one red, represent a possible top quark bound state, toponium, surrounded by small particles inside a cloudy, circular enclosure.
Can the top quark, the shortest-lived particle of all, bind with anything else? Yes it can! New results at the LHC demonstrate toponium exists.
Black and white image of a star field with one bright object in the center, indicated by a red arrow, believed to be the third interstellar object detected passing through our solar system.
First 'Oumuamua, then Borisov, and now ATLAS have shown us that interstellar interlopers are real. Here's what the newest one teaches us.
Side-by-side images of the Ring Nebula show its structure in different colors, each with a white dotted oval highlighting the central region.
Our nearby Ring Nebula, with JWST's eyes, shows evidence for planet formation. Will the Sun eventually destroy, and then replace, the Earth?
A crane lifts a large metal structure onto a white building at a construction site in a mountainous, arid area under clear blue sky.
The relic signal that first proved the Big Bang has been known and analyzed for 60 years. Join us at the frontiers of modern cosmology!
The CMB has long been considered the Big Bang's "smoking gun" evidence. But after what JWST saw, might it come from early galaxies instead?
Images show the planet Uranus. The left image highlights its bright rings, while the right image, captured by the James Webb Space Telescope, depicts surprising details of glowing rings and a cloudy atmosphere. Discover more wonders in our solar system with these stunning visuals.
Once every 12 years, Earth, Jupiter, Uranus, and Neptune all line up, opening a window for a joint mission. Our next chance arrives in 2034.
Infographic displays spacecraft names and missions around the Sun, planets, and moons, illustrating the current and planned science fleet exploring the Solar System.
Over the first half of 2025, the US has cut science as never before. This disaster for American science may be a gift to the rest of the world.