UNIVERSE PRESENTATION

PresentaTION

What are the challenges we are facing with asteroids nowadays?

asteroids

INDEX

asteroids menace and defence

Formation and ressources

asteroides impacts

DIFFERENCES

Differences between meteorids and asteroids

Essentials

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

+ Info

O IRON O COBALT O PLATINUM O GOLD

TIMELINE

no SPECIFIC NAME -800 000 YEARS AGO

ASTEROID OF chelyabinsk -2013

ASTEROI OF tUNGUSKA -1908

NO SPECIFIC NAME -3,5 BILLIONS YEARS AGO

Asteroid of Chicxulub -65 MillIONSYEARS AGO

GANYMEDE

asteroids menace and defence

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