Blackhole
What is blackhole ?
A blackhole is a pure form of darkmatter(Opposites of matter). Blackhole is a region of space having a gravitational field so intense that no matter or radiation can escape. Einstein's Theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole. A black hole is a place in space where gravity pulls so much that even light can not get out. The gravity is so strong because matter has been squeezed into a tiny space.
How blackhole's forms ?
Blackhole is made from a dying star(Supernova) but condition is the star is havier than the sun. Every star go from the process called A Nuclear fusion. When two hydrogen atoms fuses and made heavier element called helium then two helium atom fuse into carbon and two carbon fuse and formation of Oxygen atom and last oxygen fuse into Iron and then star collapse and become a blackhole or neutronstar.
Can we see blackhols ?
No, we can not see a blackhole because no light can get out (escape velocity greater than the speed of light). we can only see the outer layer of blackhole called "Event-horizon". A singularity is what all the matter in a blackhole gets crushed into. All matter burns or become a plasma when it goes in to a blackhole.
Event Horizon Telescope (EHT)
The Event horizon telescope is a large telescope array consisting of a global network of radio telescope. The Event horizon telescope project combines data from several VLBI (Very Long Baseline Interferometry) stations around earth with angular resolution sufficient to observe objects. The size of a super massive blackhole's event horizon , the EHT has taken that to a global scale to make a telescope as big as our entire planet. Radio telescope in Arizona, Hawaii, Mexico, Chile, Spain and even Antarctica all observed their blackhole targets in tandem.
Using the EHT, scientists obtained an image of two blackhols. First is our nearest blackhole Sagittarius A* or S2 (SagittariusA* is our galaxy's blackhole) and another is M87* (M derivative Messier ) blackhole. M87* Emits Radiation beam's from the poles (you can also see radiation beam's in image). It emits radiation beam's because M87* blackhole is 1,000 times more massive than sagittarius A* blackhole.
1. M87* blackhole( you can see the radiation beam's)
2. Sagittarius A* blackhole
Using the EHT, scientists obtained an image of two blackhols. First is our nearest blackhole Sagittarius A* or S2 (SagittariusA* is our galaxy's blackhole) and another is M87* (M derivative Messier ) blackhole. M87* Emits Radiation beam's from the poles (you can also see radiation beam's in image). It emits radiation beam's because M87* blackhole is 1,000 times more massive than sagittarius A* blackhole.
1. M87* blackhole( you can see the radiation beam's)
2. Sagittarius A* blackhole
