BLACK HOLE
The remains of a star that has a gravitational field so strong that nothing can escape, not even light!
1.
Some scientists believe that there is a black hole
here in our very own Milky Way
2.
Black holes are extremely compact space objects
that were once massive stars which collapsed inward due to the force of their
own gravity
3.
Consequently, black holes are very dense. If not
for effect black holes have on objects around them, would be unable to detect
them
4.
has a powerful gravitational
field which traps everything that goes near it
5.
Fuel for black hole, may be trapped gas, stars, and
dust that are pulled into the hole
6.
Gas pulled into a black hole swirls down into it
much like a whirlpool
7.
By using a spectroscope
Hubble Space Telescope has ability to clock the speed of this gas as it swirls
around the entrance to the hole. The speed with which the gas swirls is
considered the black hole's signature
8.
By knowing the speed of the gas, the mass of the
black hole can be calculated
9.
A black hole in the center of the M87 galaxy in the
constellation Virgo, which is 50 million light
years away, has been calculated to have a mass equal to that of 3
billion Suns
10.
An even more effective way of studying black holes
is through the use of X-ray observations. X-rays have the capacity to penetrate
through gas and dust much better than optical light.