Black holes like the one shown in this illustration can grow astonishingly massive by feeding on immense amounts of matter. But just how big can they get? In the early 1960s astronomers discovered a ...
Physicists have started to treat a once-fringe idea with surprising seriousness: that our entire observable universe might be the interior of a black hole that formed in some larger cosmos. The notion ...
Did you know the Great Blue Hole in Belize is huge? It’s 318 meters (1,043 feet) wide and goes down 124 meters (407 feet). This amazing hole is part of the Belize Barrier Reef, a UNESCO site. It has ...
Have gravitational waves provided the first hint of primordial black holes born during the Big Bang?
"If this turns out to be real, then it’s enormous." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Scientists may have "heard" the first ...
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