Eye told you so: Why illusions are all in the eye of the beholder
Our brain and eyes can play tricks on us—not least when it comes to the expanding hole illusion. A new computational model ...
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Rarely Seen Early Universe Quasars On Collision Course Via Hubble Telescope
A pair of quasars that existed when the universe was only 3 billion years old has been spotted by the Hubble Space Telescope. The quasars were powered by a pair of supermassive black holes on a ...
Physicists Discover Singularities-Free Black Holes Using Pure Gravity
A new study shows black holes can form without singularities, using only modifications to Einstein’s equations.