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Interactive: What Is Space?
...of space-time, overturning Isaac Newton’s classic theory and correctly predicting the existence of black holes and gravity’s ability to bend light. But a century later, the fundamental nature of space-time...
A Glimpse Through a Cosmic Keyhole
...galaxies, meaning that they have jets of material streaming out in two directions, probably powered by the supermassive black holes spinning at the galaxies’ centers. (The jets emit radio light...
An Enormous Gravity ‘Hum’ Moves Through the Universe
...black holes get relatively close to each other? There were reasons to think that instead of merging, as smaller black holes do, supermassive black holes just rotate around each other...
Early Life in Death Valley
Paul Knauth scrambled up a steep, rocky canyon in the Black Mountains of Death Valley National Park, sporting gloves and a walking stick to help navigate the sharp scree. The...
Theories of Everything, Mapped
...a single framework. In their day-to-day work, though, many physicists focus more on rooting out dark matter, solving the Standard Model’s hierarchy problem, and pondering the goings-on in black holes,...
Where Gravity Is Weak and Naked Singularities Are Verboten
...a universe like ours. Always, singularities lay at the centers of black holes — sinkholes in space-time that are so steep that no light can climb out. He told his...
What Is Quantum Teleportation?
...with Janna Levin, we’d eventually be talking about black holes. LEVIN: [laughing] I can turn any conversation into a conversation about black holes. PRESKILL: No surprise there. Actually, I think...
The Universe Is Not a Simulation, but We Can Now Simulate It
...York, coded some of the first black holes, putting them into GASOLINE in 2008. Skipping or simplifying tons of physics, she programmed an equation dictating how much gas the black...
How Space and Time Could Be a Quantum Error-Correcting Code
...both kinds of universes contain black holes. “The most fundamental property of gravity is that there are black holes,” said Harlow, who is now an assistant professor of physics at...