The Event Horizon Problem
Black holes destroy information. Quantum mechanics says information can never be destroyed. Both cannot be true — and yet both appear to be. This is the most consequential unsolved problem at the intersection of the two greatest theories in physics.
Why Haven't We Found Aliens?
The Fermi Paradox examined seriously. Every proposed resolution, what the silence actually tells us, and why the next 20 years could finally give us an answer.
Dark Matter: The Universe's Missing 85%
The evidence that convinced everyone, every candidate that's been ruled out, and why — after decades of searching — we still have no idea what it actually is.
The First Three Minutes
What actually happened between the Big Bang and the first atoms — second by second — and how we know. The most consequential three minutes in the history of everything.
Inflation: The Theory That Explains Everything (And Can't Be Proven)
Why physicists love cosmic inflation, what it explains beautifully, and the deeply uncomfortable fact that it may be permanently unfalsifiable.
How Gravitational Waves Were Found
The 50-year engineering odyssey to detect something smaller than a proton. What happened the morning of September 14, 2015, and why it took a century to get there.
The Ocean Worlds
Europa, Enceladus, Titan — why the most promising places for life in the solar system are not planets at all, and what we're doing to find out.
The Hubble Tension: Is the Standard Model Broken?
Two independent measurements of the universe's expansion rate that stubbornly disagree by just enough to matter. What it might mean if neither is wrong.