BLACK HOLES

WHAT ARE BLACK HOLES?

• A black hole is a point in space that is infinitely small
• Because it is infinitely small it is also infinitely dense
• The large amount of mass within it causes a strong gravitational pull
• Black holes are thought to be the center of most galaxies

WHY BLACK HOLES ARE BLACK

• Black holes has such a strong gravitational pull that light can't escape
• The gravity around them causes time to be altered as well as matter
• If an object is near a black hole it will spiral towards it
• After it reaches the center it joins the infinitely small mass in the middle

HISTORY OF THE BLACK HOLE

• John Mitchell suggested the modern theory of black holes
• He wrote it in a letter in 1783
• It wasn't until 1915 that black holes were proven with real evidence
• John Wheeler coined the phrase "black hole" in 1967