stephen-hawking

A Brilliant Life

Remembering Stephen Hawking

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MAGAZINE HIGHLIGHTS

PlanetNine

Is Planet Nine still out there?

Researchers debate the existence of a massive planet that could be hiding deep in our solar system.
OutThere

Peering Inside Realistic Black Holes

Astronomers finally figure out what it's like inside an actual, spinning black hole - and where exactly it'd kill you.
BEC

What Does Absolute Zero Mean?

It's the absolute nadir of our universe's thermometer. And it gets pretty weird down there.
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