Nasa Posting

1
a)Visible- M33, Milky way Center, Betelgeuse, 3c273, & Andromeda.
b)Xray- Cygnus X-1, M33,  Milky Way Center, Moon, & Cygnus A.
c)Radio Waves- Cygnus A, Sun, M33, Milky Way Center, & 3C273


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Cygnus-X1- 8100 lightyears away from Earth. Going as fast as possible, i traveled to Cygnus-X1. In this Binary System, a stellar mass black hole pulls gas of a star that rotates, the gas forms an accretion disk. The black hole bends the light of nearby stars.


Andromeda- 2.5 million lightyears away from Earth. A supermassive black hole 30 million times heavier than our Sun. Astronomers have calculated the mass by figuring out how fast the stars orbit it.

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Up Close and Personal
a)What is a black hole?
A black hole is an object that is so compact that its gravitational force is strong enough to prevent light or anything else from escaping.
b)Do black holes obey the laws of Gravity?
 yes.
c) How are black holes born?
A black hole is born when an object has come unable to withstand the compressing force of its own gravity.