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Our cosmic home is typical for stars, but not for galaxies
Our cosmic home is typical for stars, but not for galaxies
Most stars in the Universe are located in big, massive, Milky Way-like galaxies. But most galaxies aren’t like ours at all.
Ethan Siegel
Aug 19
Ask Ethan: Could we build a collider bigger than Earth?
Ask Ethan: Could we build a collider bigger than Earth?
The largest particle accelerator and collider ever built is the Large Hadron Collider at CERN. Why not go much, much bigger?
Ethan Siegel
Aug 16
3 big lessons from Einstein’s most famous equation: E=mc²
3 big lessons from Einstein’s most famous equation: E=mc²
More than any other equation in physics, E = mc² is recognizable and profound. But what do we actually learn about reality from it?
Ethan Siegel
Aug 15
How a failed experiment led to Einstein’s first big revolution
How a failed experiment led to Einstein’s first big revolution
The Michelson-Morley experiment of 1887, despite expectations, revealed a null result: no effect. The implications were revolutionary.
Ethan Siegel
Aug 14
Einstein’s big insight that explained Newton’s law of gravity
Einstein’s big insight that explained Newton’s law of gravity
For centuries, Newton’s inverse square law of gravity worked beautifully, but no one knew why. Here’s how Einstein finally explained it.
Ethan Siegel
Aug 13
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