This year, on April 10th, scientists were finally able to do the unthinkable: they allowed humanity to look straight into the abyss of a super-massive black hole and take a photo like a tourist attraction! But even after these accomplishments, we still don’t know much about black holes at all, since one of them has challenged the whole scientific community with new impossible feats.
In the middle of July 2019, black holes puzzled astronomers once again. New observations were made possible, thanks to the famed Hubble telescope, by a team of European scientists. Their study showed that a relatively small black hole contradicts all our expectations by almost completely mimicking its much bigger siblings.
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What is a black hole? 1:01
How do any object can become a black hole 1:31
Why black holes are called black 3:02
Why the NGC 3147’s black hole is so unique 4:26
#blackholes #universe #brightside
– What is a black hole? It’s the tiniest and heaviest object possible in the universe. It can swallow entire stars with ease and is absolutely invisible to the human eye.
– Every black hole was once a shining star, just like the others you see in the night sky.
– The core, and center of mass, of this black hole is called a singularity. The mass of this thing can be from hundreds of millions of the Sun’s mass, to hundreds of billions!
– In fact, the density is the most exciting thing about black holes. You see, it turns out that any object can become a tiny black hole if compressed enough.
– The surrounding space near the singularity is the notorious event horizon. This is exactly why black holes are called black, though it’s not entirely true.
– Accretion disks consist mostly of superheated gas and space dust, and the speed of their movement increases the closer they get to the event horizon.
– The supermassive black hole at the core of IC 1101 suits its huge galaxy well. This terrifying monster is heavier than about 40 billion masses of the Sun.
– The Milky Way is just 100,000 light-years across – sounds like nothing when compared to the supposed 6 million light-years of IC 1101’s diameter.
– The most notable black hole in the Milky Way is in the Sagittarius constellation, right in the middle of the spiral of stars that our galaxy’s basically made of.
– And then we have spiral galaxy NGC 3147, 130 million light-years away from us. This galaxy is small, and not dense enough to constantly feed something as big and powerful as a supermassive black hole.
– It’s expected that black holes, in a position this unfortunate, can’t have furious swirling accretion disks around them.
– But as they say, there’s no negative result in scientific research. Sometimes unexpected findings can teach us a lot more than pure success.
– For now, no one knows how this starving black hole can support this disk.
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