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June 15, 2018 is the death day of physicist Stephen Hawking, since his death, every year there are a group of people who complain on that day, why are so many people buried in the UK, and even "Game of Thrones" can't be filmed back then, and they are rushing to shoot other film and television dramas.
In fact, Hawking did not cry, because he returned to his own sea of stars, and at the same time, he was also missed and loved by scientists, but when we look up at the starry sky, even one black hole in the universe can swallow all hope and return to the original singleness.
It is reported that Hawking still hopes that the meteorite can launch his ashes out of the solar system, so that the solar system can no longer find him, but this wish is too romantic and cool to be realized.
Therefore, his ashes were buried in Westminster Abbey in England on June 15, 2018, which is more than 600 years old, and those who can be buried in it are national figures.
It wasn't until the end of 2019 that his comrades-in-arms and successors discovered a black hole 2,800 light-years away from Earth, almost identical to the Hawking particle proposed by Hawking that year, so the entire astronomical community was shocked.
They soon agreed to name the black hole "Monocerosis V616" to commemorate Hawking's greatness, but Hawking fans felt it was too cold and began to demand that Hawking be "sent" to the black hole.
It wasn't until 2021 that a black hole 1,500 light-years away from Earth was discovered through radio telescopes, revealing the existence of a small "unicorn" black hole.
Is the earth blessed or troubled?
1. Look for black holes.
On Stephen Hawking's birthday, astronomers are talking about it because they have just discovered a black hole very close to Earth, but this black hole is very small, only about 1.2 times the mass of the shining sun.
A black hole is actually not easy to find, because it does not emit light at all and does not radiate energy, but its mass also exerts a significant gravitational pull on the surrounding stars, so that even if the black hole cannot find it on its own, its companion star will find it.
The discovery of V616 Monocerum is precisely because of this, during this time, astronomers used radio telescopes to find black holes, on the one hand, because dark matter is almost insensitive to electromagnetic waves, almost no loss of resolution, and can be observed in a longer range;
On the other hand, radio wavelengths of light can pass through the Milky Way's range of dust, so that you can see the stars in between.
So they used radio telescopes to scan a wide area around the Milky Way galaxy for stars engulfed by black holes, with the goal of finding a massive black hole.
Massive black holes are easier to find because their gravitational pull is so large that the engulfed star is surrounded by nearby stars and has a high-speed motion, constantly colliding and accelerating around it, resulting in radio waves, which also produces obvious signals for observations.
The most famous is Cancer A*, which is 3.26 light-years away from Earth, a black hole with a mass of about 4.3 solar masses, so it can be said that the space around the solar system is distorted by black holes every day and space time advances 25 kilometers.
Because A* Crab was discovered by X-ray significance, the black hole that kissed the Sun has three names: first, astronomers named it "Sagitra";
Then there is the name given by Western culture, called "black hole";
Next is the name given by Chinese culture, called the giant panda.
Nowadays we all like to use the name "giant panda" because we Chinese are strong enough to have a black hole that is more powerful than Sagitra, which is the ladder to the giant panda!