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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.
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Ethan Siegel is an award-winning PhD astrophysicist and the author of four books, including The Grand Cosmic Story, published by National Geographic.
Protected: Ask Ethan: Could evolving dark energy lead to a Big Crunch?
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Over a century after we first unlocked the secrets of the quantum universe, people find it more puzzling than ever. Can we make sense of it?
For centuries, even after we knew the Sun was a star like any other, we still didn't know what it was made of. Cecilia Payne changed that.
DESI, by mapping galaxies, has claimed they see evidence for dark energy evolving by getting weaker. But that's only one interpretation.
Even from a single pixel, multiwavelength data taken over time can reveal clouds, icecaps, oceans, continents, and even signs of life.
Someday, we'll look back and see a young galaxy forming stars for the first time. JADES-GS-z14-0, the farthest ever, isn't early enough.
Einstein's general relativity has reigned supreme as our theory of gravity for over a century. Could we reduce it back down to Newton's law?
Our scientific instruments are constantly improving, revealing nature's workings as never before. Without them, we'll remain in the dark.
All scientific theories are limited in scope, power, and application, being mere approximations of reality. That's why consensus is vital.
Some nebulae emit their own light, some reflect the light from stars around them, and some only absorb light. But that's just the beginning.
When we see spiral galaxies, some are face-on, others are edge-on, but most are tipped at an angle. But which side is closest to us?
The tiniest galaxies of all are the most susceptible to violence by their larger, bullying siblings. That's why we need them in isolation.
The Universe is expanding, and individual, bound structures are all receding away from one another. How, then, are galaxies still colliding?
Barnard's star, the closest singlet star system to ours, has long been a target for planet-hunters. We've finally confirmed it: they exist!
Back in 1970, Sister Mary Jucunda wrote NASA, decrying large investments in science. A former Nazi's legendary response is still relevant.
Since the dawn of history, humans have pondered our ultimate cosmic origins. Now in the 21st century, science has gone beyond the Big Bang.
Just 165,000 light-years away, the Large Magellanic Cloud is suspected to house a supermassive black hole. At last, evidence has arrived.
There are some 26 fundamental constants in nature, and their values enable our Universe to exist as it does. But where do they come from?
Under extreme conditions, matter takes on properties that lead to remarkable, novel possibilities. Topological superconductors included.
One of the most promising dark matter candidates is light particles, like axions. With JWST, we can rule out many of those options already.
A new bill introduced into the US Senate claims to make us safer. Instead, it would destroy all virology research, and for no real cause.