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The Simple Idea Behind Einstein’s Greatest Discoveries
...is still as productive as it once was. The flashier fruits of Albert Einstein’s century-old insights are by now deeply embedded in the popular imagination: Black holes, time warps and...
This Cosmologist Knows How It’s All Going to End
...eventually star formation halts, because there’s no new material being brought in. The stars you have burn out. A lot of things fall into black holes, then the black holes...
Joe Polchinski’s Restless Pursuit of Quantum Gravity
...a paradox about the nature of black holes. The “firewall argument,” as it’s called — developed with Ahmed Almheiri, Donald Marolf and James Sully — “took form over three months...
A Hint of Dark Matter Sends Physicists Looking to the Skies
...from undiscovered particles to black holes. One idea in particular, however, is drawing renewed attention: the axion. And researchers are turning to the skies to track it down. Axions are...
New Conversations, Deep Questions, Bold Ideas in Season Four of ‘The Joy of Why’
...or black holes or quantum field theory and extra dimensions. But these are all very mathematical subjects. And I marvel that we can follow the math into making physical discoveries....
For Astronomers, Neutron Star Merger Could Eclipse Eclipse
...it had detected gravitational waves from two colliding black holes. Four months later, while still in its first observing run, the team confirmed the detection of a second black hole...
The End of Theoretical Physics as We Know It
...no one can calculate how they come together to make a proton. The equations just can’t be solved by any known methods. Similarly, a merger of black holes or even...
The Physicist Who Slayed Gravity’s Ghosts
...find amazing about general relativity is that it tells you precisely when it stops working. Out of the laws of general relativity come black holes. From the outside, we think...
Random Surfaces Hide an Intricate Order
...Next, fit them together in any fashion, as long as the final shape closes up like wrapping paper around a gift (so no holes or openings). If you start with...