The mighty milky way
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The mighty milky way. Black holes. A black hole has super gravity. A black hole will arrive every 10,000 to 100,000 years. A black hole is so powerful that nothing can escape its pull ,that is why it is so dark . It can destroy stars . nebula.

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Presentation Transcript

Black holes
Black holes

  • A black hole has super gravity.

  • A black hole will arrive every 10,000 to 100,000 years.

  • A black hole is so powerful that nothing can escape its pull ,that is why it is so dark .

  • It can destroy stars .


Nebula
nebula

  • Inside a nebula gasses are push out , and gravity pulls inward

  • It pulls more and more dust and gas . It squeezes tighter and tighter into a big blob .

  • The blob heats up and begins to glow

  • All of that is because a star is being born .


Stars
Stars

  • The blue stars are hotter and red is cooler.

  • The blue stars are hotter then the sun.

  • A blue star lives for 4.6 millions years.

  • Almost none of the stars shine yellow.


Word wise
Word wise

  • Black hole: an object in space with so much gravity .

  • Galaxy: a collection of stars ,gasses & matter held together by gravity.

  • Light years : the distance light can travel a year.

  • Nebula: a cloud of gasses and dust .

  • Supernova : an explosion that destroys stars


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