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Science Stuff

Published on Nov 23, 2015

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PRESENTATION OUTLINE

SPACE ROCKS

Photo by bulliver

Comets

  • Comets are made from ice rocks and metals
  • They have a tail that spans millions of kilometers
  • It's orbit goes pass Pluto where it's, very cold that's where it gets cold
  • It's orbit is oval instead of circular like a planet
  • High speed particles makes the tails of the comet
Photo by Cestomano

Comets continued

  • Scientist believe that comets carried elements to planets
  • They carried things like water from the ice
  • Halley Williams founded the first comet
  • He was an English astronomer
  • When the comet gets close to the sun the ice boils and steams up
Photo by Cestomano

Comets continued

  • Long period comets have no fixed orbits and travel 100 AU
  • Short period comets travel around 30 to 55 AU
  • AU stands for astronomical unit
  • Short period comets are near the icy region near Neptune
  • Long period comets have no fixed orbits and just go everywhere
Photo by Ken_Lord

Comets continued

  • Comets are very hard to spot even with today's technology
  • The ones that scientist see help them infer that there are vast numbers of them
  • The really bright ones have the sun shinning on them
  • Edmond Halley founded the first comet
  • He was and English atronomer, geophysics, mathematician, and physicist
Photo by Ken_Lord

Asteroids

  • Asteroids are made out of rock and other materials.
  • Meteors have no atmosphere on it, since it does not have enough gravity
  • The meteorites are classified in 3 types, the silicaceous, metallic, and carbonaceous
  • Most to all asteroids are located in the asteroid belt
  • The asteroid belt is between Jupiter and Mars .

Asteroids continued

  • The silicaceous type asteroids are bright and in the inner region of the belt
  • The metallic type asteroids are bright and are in the middle region of the belt
  • Carbonaceous type asteroids are dark in color and in the back region of the belt.
  • In 208, we will be missed by 600,000 miles by an asteroid.
  • The surface is covered in ice, from Co2, rock, craters, and minerals.
Photo by FlyingSinger

The 7 biggest asteroids

  • Ceres, 580 miles across (dwarf planet)
  • Pullas, 378 miles across
  • Vesta, 334 miles across
  • Hygiea, 289 miles across
  • Euphrosyne, 230 miles across
Photo by FlyingSinger

7 biggest asteroids continued

  • 6. Intermania, 217 miles across
  • 7. Davida, 201 miles across

Meteoroids

  • People call a meteoroids falling or shooting stars
  • Meteors are made of planets or satellites that deteriorate
  • There are three types a Stoney type iron type and a Stoney iron type
  • They are 80 to 70 feet above the earths atmosphere usually
  • It is really rare to have a meteor hit the earth and to have a big one

Meteoroids