What happens when a gargantuan cloud of gas swallows a pair of monster black holes with their own appetites? Feasting on the gas can cause some weird (heavenly) bodily functions. AT 2021hdr is a ...
It's pretty challenging for black holes to smash into each other, but it happens. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The many black ...
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