UNIVERSE PRESENTATION

asteroids

PresentaTION

What are the challenges we are facing with asteroids nowadays?

INDEX

Formation and ressources

asteroids menace and defence

asteroides impacts

DIFFERENCES

Essentials

Differences between meteorids and asteroids

Asteroid

• Rocky body orbiting the Sun.
• Sizes range from a few meters to several kilometers.
• Composed of rocks, metals and ice.
• May be remnants of the formation of the solar system.

Meteorid

• Fragments that penetrate the Earth's atmosphere.
• Variable size, from dust to several meters.
• Mainly composed of minerals and metals.
• Formed during collisions and falls on Earth.

formation

form during the early solar

ressources

O IRON O COBALT O PLATINUM O GOLD

+ Info

TIMELINE

Asteroid of Chicxulub -65 MillIONSYEARS AGO

NO SPECIFIC NAME -3,5 BILLIONS YEARS AGO

no SPECIFIC NAME -800 000 YEARS AGO

ASTEROI OF tUNGUSKA -1908

ASTEROID OF chelyabinsk -2013

asteroids menace and defence

GANYMEDE

THANKS!

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