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Explore the discoveries that reveal how the world works, alongside the technologies that extend, reshape, and sometimes challenge what’s possible.

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An artist's impression of an ultra high energy cosmic ray.
Starts With A Bang
The simplest explanation for ultra-high-energy cosmic rays
The highest-energy particles could be a sign of new, unexpected physics. But the simplest, most mundane explanation is particularly iron-ic.
Ethan Siegel
A nebula in space glows with bright purple, pink, and blue hues, surrounded by stars and cosmic dust where new stars form in our expanding universe.
Starts With A Bang
Ask Ethan: Can stars form within the expanding Universe?
Our Universe doesn't just expand and cool, but the expansion itself is accelerating. Can stars form under such structure-erasing conditions?
Ethan Siegel
An older man with a white beard sits on a chair against a white backdrop, with a large, colorful DNA double helix illustration in the background.
54mins
Full Interview
The evolutionary logic of survival and death, in 54 minutes
“How can all the diversity and, sort of, seeming order that's out there in the world emerge from a process dependent upon chance?”
Sean B. Carroll
Aerial view of a river delta with branching waterways, shaped by natural intelligence, flowing into the sea and surrounded by green and brown land.
Business
A new way to think about intelligence
Welcome to The Nightcrawler — a weekly newsletter from Eric Markowitz covering tech, innovation, and long-term thinking.
Eric Markowitz
Diagram illustrating Earth's orbit around the Sun, showing the tilt of Earth's axis, the seasons, equinoxes, solstices, and directions to celestial poles.
Starts With A Bang
10 solstice facts for everyone to know
Earth orbits the Sun while spinning on its tilted axis, with two annual occasions marking that maximal tilt. That's where solstices arise.
Ethan Siegel
Two monkeys sit on a tree branch interacting, with brain diagrams and EEG waveforms in the background, one with a purple arrow pointing to its head.
Neuropsych
The next revolution in neuroscience is happening outside the lab
By tracking brain activity as primates move freely in the wild, neuroethology could reshape what we think we know about our own minds.
Jasna Hodžić
nuclear fusion
Starts With A Bang
The USA’s Genesis Mission: moonshot or madness?
The Department of Energy's newest mission seeks to make a unified AI platform across all national labs. Will it help US science, or kill it?
Ethan Siegel
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