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Why humanity must invest in exploring the Universe
Why humanity must invest in exploring the Universe
There are so many problems, all across planet Earth, that harm and threaten humanity. Why invest in researching the Universe?
Ethan Siegel
Apr 17
The compelling case for axions as our dark matter
The compelling case for axions as our dark matter
The majority of the matter in our Universe isn’t made of any of the particles in the Standard Model. Could the axion save the day?
Ethan Siegel
Apr 16
How we know the Universe is 13.8 billion years old
How we know the Universe is 13.8 billion years old
The Universe is 13.8 billion years old, going back to the hot Big Bang. But was that truly the beginning, and is that truly its age?
Ethan Siegel
Apr 15
Starts With A Bang podcast #104 — The magnetized galactic center
Starts With A Bang podcast #104 — The magnetized galactic center
The center of the galaxy doesn’t just host stars and a black hole, but an enormous set of rich gassy and dusty features. Find out more!
Ethan Siegel
Apr 13
What was it like when human beings transformed the Earth?
What was it like when human beings transformed the Earth?
Although human beings arrived on Earth just ~300,000 years ago, we’ve transformed the entire planet completely. Here’s how we did it.
Ethan Siegel
Apr 12
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