00:00When so much of anything accretes into a small place in space, it may all eventually collapse
00:08in on itself, creating cosmic enigmas we know as black holes.
00:13According to an aged theory from this guy, the equation E equals mc squared outlines
00:17a relationship between mass and energy, such that enough of anything, even light, should
00:22be able to collect and turn into a black hole.
00:24However, now experts say that a black hole made from light might not actually be possible.
00:29One of these types of theoretical black holes is a tiny proton-sized one commonly called
00:33ball lightning.
00:34They were thought to be able to occur within the beams of high-powered lasers, but now
00:38new research posits that's just not the case.
00:40The appearance of ball lightning is prevented by what's called the Schwinger effect, or
00:44where matter can be created in that strong electrical field.
00:47With the researchers writing, our analysis strongly suggests that the formation of black
00:51holes solely from electromagnetic radiation is impossible, either by concentrating light
00:56in a hypothetical laboratory setting, or in naturally occurring astrophysical phenomena.
01:01They say that their math proves that it's at least impossible on a scale from around
01:04the size of Jupiter all the way down to one that is tinier than a proton.
01:08Still, they admit that in the strange conditions of the early universe, it may have once been
01:13possible.
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