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8 matches found for search term planetesimal, exact phrase.

Chaos and Order
How the Moon formed is something astronomers have been wondering for ages. The best idea is that put forward by Bill Hartmann – an astronomer and fellow space artist – and Donald Davis. They assert that a massive protoplanet slammed into Earth ju...
Keywords: ... mation, accretion, impact, protoplanet, planetesimal ...

Comets Bringing Water
A view of the early Earth and Moon system, still enduring the seemingly endless bombardment of planetesimals and comets that rained down for the first several hundred million years of the pair's existence. It is thought that impacts by icy comets hel...
Keywords: comet, Earth, Moon, impact, water, ocean, protoplanet, planetesimal, planet, ter...

Emergence of the Terrestrials
This shows a view towards the Sun in the days when the terrestrial planets were forming from the protoplanetary disc, about 4500 million years ago. It shows an advanced stage in the process of planet formation....
Keywords: terrestrial planet, formation, planet, planetesimal, planetoid, accretion...

Fiery Birth
An illustration showing a primitive terrestrial planet, more properly called a protoplanet, in the process of formation. The planet grows as its gravity sucks in more and more rocky debris. The whole process takes hundreds of millions of years....
Keywords: accretion, planetoid, planetesimal, formation...

Molten Planet
An illustration showing a primitive terrestrial planet, more properly called a protoplanet, in the process of formation. We view the newborn world from its troubled surface, and a whole host of similar worlds is visible in the sky before us. This ima...
Keywords: Earth, protoplanet, planetesimal, formation, planet, terrestrial planet, landsca...

Protoplanet
This image is very similar to Fiery Birth andEmergence of the Terrestrials, showing a primitive terrestrial planet, or protoplanet, in the process of formation, 4500 million years ago....
Keywords: accretion, planetoid, planetesimal, formation...

Solar System Formation
Here, I show the early Solar System – well, not necessarily our solar system. Gas and dust has lumped together to form asteroid-sized planetesimals, and these will then come together to form the larger bodies astronomers call planetoids. Soon, the ...
Keywords: formation, accretion, planetesimal, solar nebula...

End of 8 total matches