- Asteroids are 4.6 billion year old rocky fragments that orbit the sun and are also called "minor planets." - There are three broad composition classes of asteroids that differ in their nickel-iron core, carbonaceous chondrite, and icy mantle components. - Some asteroids even contain DNA and RNA components like guanine and adenine.

1. Asteroids
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by
Quinten Ajenifuja
1Bbi Student – Group A1 – K.U.Leuven

2. Asteroid ?
What’s that ?
What does it look like ?
Asteroid Eros”

3. The beginning …

4. Properties of asteroid s
............
- 4.6 billion years old rocky fragments
- Most of them are orbiting the sun
- Also called “minor planets”
- 3 broad composition classes of asteroids

5. Names and number of asteroids near Earth

6. Compoistion of
asteroids
Nickel-iron core
Carbonaceous chondrite
Icy mantle
DNA & RNA components
(guanine, adenine)

7. Thank you for your attention
Source list :
http://solarsystem.nasa.gov
http://www.spaceguarduk.com/
http://neat.jpl.nasa.gov/
http://fanart.lionking.org/Artists/Ziffi/TheKingsInTheStars.png