How big is the black hole in the Milky Way? How does the Hubble Telescope support the Big Bang Theory? What if VY Canis Majoris exploded? How much dark matter is in the Milky Way? How big can a black hole be? How many galaxies are in the observable universe?
A. White dwarf. B. Red giant. C. Black hole. D. Pulsar. 相关知识点: 试题来源: 解析 C。解析:“One of the most fascinating is the black hole at the center of the galaxy.”,银河系中最迷人的天体之一是黑洞。反馈 收藏
How big is the black hole in the Milky Way? What is the mass of planetary nebula? What is the mass of the Sun? What did Stephen Hawking do for astronomy? How close is the nearest black hole? What color is a black hole? What are the characteristics of a black hole?
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Today, nowhere on Earth is truly radio quiet. Satellites relaying signals around the globe have blanketed the planet in radio waves. But there are a few places with less crowded skies, where radio telescopes can look...
With no giant, bright objects visible zipping away from GD-1, and no evidence for a hidden, second supermassive black hole in our galaxy, the only obvious option left is a big clump of dark matter. That doesn't mean the object is definitely, 100%, absolutely made of dark matter, Bonaca...
Astronomers can't see the black hole itself, but, as the gas falls to its doom, it heats up and emits energy in the form of X-rays. The black hole Cygnus X-1 is pulling material from a massive blue companion star. That "stuff" forms an accretion disk around the black hole. (...
Event horizon and black Hole FAQs answered by an expert Image credit: University of Sussex. Xavier Calmet Professor Xavier Calmet is a professor of physics and astronomy in the School of Mathematical and Physical Sciences at the University of Sussex, U.K. ...
What is a black hole什是黑洞 What is a Black Hole? ? This is an object with a gravitational field so powerful that even electromagnetic radiation (such as light) cannot escape its pull. An easily understandable explanation ? An understandable tennis ball example. ? Body/volume/gravitational ...
There is a supermassive black hole in the middle of the Milky Way. So, it gets a great deal of matter it can pull. It is called Sagittarius-A. Black holes like these power active galaxies and old ones too, which are called quasars. ...