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Modern astrophysics answers Isaac Newton’s oldest question
Modern astrophysics answers Isaac Newton’s oldest question
Straddling the bounds of science and religion, Newton wondered who set the planets in motion. Astrophysics reveals the answer.
Ethan Siegel
Aug 6
Astronomers solve longstanding galaxy cluster collision puzzle
Astronomers solve longstanding galaxy cluster collision puzzle
How do normal matter and dark matter separate by so much when galaxy clusters collide? Astronomers find the surprising, unexpected answer.
Ethan Siegel
Aug 5
Ask Ethan: Did black holes form directly from the Big Bang?
Ask Ethan: Did black holes form directly from the Big Bang?
Even in the very early Universe, there were heavy, supermassive black holes at the centers of galaxies. How did they get so big so fast?
Ethan Siegel
Aug 2
The reality of quantum fluctuations was proven back in 1947
The reality of quantum fluctuations was proven back in 1947
Often viewed as a purely theoretical, calculational tool only, direct observation of the Lamb Shift proved their very real existence.
Ethan Siegel
Aug 1
10 revolutionary finds from JWST’s first 2 years of science
10 revolutionary finds from JWST’s first 2 years of science
In July of 2022, the first science images from JWST were unveiled. Two years later, it’s changed our view of the Universe.
Ethan Siegel
Jul 31
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