The Mysterious Holes | Black Holes

Black Holes

    Black holes are a great mystery. Astronomers know they are there, because of their effect on nearby stars (If a star is too close, it gets pulled towards the hole) but they have proved very difficult to study. Why? Because they are black, and that makes them invisible.

Birth of hole

       Black holes are sometimes born when stars explodes and dies. When a big star has run out of fuel it can't stop gravity pulling its gas together, squeezing it tighter and tighter until it forms a tiny neutron star,  or black hole. 

Into the hole

       Black holes have such a strong gravity that nothing in the surrounding space can escape, not even light However, they do not act as enormous vacuum cleaners - something has to get close enogh to be in danger of being pulled in. They are bit like space whirlpools, affecting just their area of space.

How do we find the holes? 

       Scientist can find black holes because gas and dust falling into a hole rubs together and becomes incredibly hot. This gives off x-rays which space telescopes detect. 

Is that true? 

        Some people think a black hole may be doorway to another universe. But it's all just speculation. Nobody really knows. However, it is doubtful someone could survive the journey through black hole to find out. An astronaut unfortunate enough to try would be stretched out like a piece of spaghetti.