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The secret reason the USA beat the USSR to the Moon
The secret reason the USA beat the USSR to the Moon
Sixty years ago, the Soviet Union was way ahead of the USA in the space race. Then one critical event changed everything.
Ethan Siegel
Dec 19
The quantum reason behind the solidity of matter
The quantum reason behind the solidity of matter
If atoms are mostly empty space, then why can’t two objects made of atoms simply pass through each other? Quantum physics explains why.
Ethan Siegel
Dec 18
The Big Bang: a series of steps down an energy staircase
The Big Bang: a series of steps down an energy staircase
From a hot, dense, uniform state in its earliest moments, our entire known Universe arose. These unavoidable steps made it all possible.
Ethan Siegel
Dec 17
How large is the biggest galaxy in the Universe?
How large is the biggest galaxy in the Universe?
It was barely a century ago that we thought the Milky Way encompassed the entirety of the Universe. Now? We’re not even a special galaxy.
Ethan Siegel
Dec 16
Starts With A Bang Podcast #112 — Galactic Archaeology
Starts With A Bang Podcast #112 — Galactic Archaeology
Even with just a momentary view of our galaxy right now, the data we collect enables us to reconstruct so much of our past history.
Ethan Siegel
Dec 14
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