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How to catch the Perseids and defeat the almost-full Moon
How to catch the Perseids and defeat the almost-full Moon
If you know when, where and how to look, the show will still be spectacular.
Ethan Siegel
Aug 9
Maryam Mirzakhani, A Candle Illuminating The Dark
Maryam Mirzakhani, A Candle Illuminating The Dark
One of the most brilliant mathematical minds of this century lost her life to cancer at only 40. Here’s what she illuminated.
Paul Halpern
Aug 8
Universe’s Largest Black Hole May Have An Explanation At Last
Universe’s Largest Black Hole May Have An Explanation At Last
Black holes shouldn’t be this big, much less this big so many billions of years ago. Yet here we are.
Ethan Siegel
Aug 7
Ask Ethan: Does light always move at the same speed?
Ask Ethan: Does light always move at the same speed?
The speed of light is a universal constant, but that doesn’t necessarily mean that light always travels at that speed, does it?
Ethan Siegel
Aug 5
If the Universe is expanding, then why aren’t we?
If the Universe is expanding, then why aren’t we?
The atoms, planets, stars, and even galaxies aren’t expanding, even though space is. How come?
Ethan Siegel
Aug 4
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