UNAWE Space Scoop - What Did Our Solar System Look Like as a Baby?

Hosted by Richard Drumm, your editor!


Planets don’t just pop out of nowhere, fully formed and ready for
astronomers to study. First, they begin as tiny little
specks of dust, forming inside the clouds of gas around baby
stars, which are known as protoplanetary discs. These dusty
specks condense from the hottest parts of the cloud, kinda like
the way raindrops form inside rainclouds. 


 


Over time, the specks of dust collide and stick together, forming
rocky pebbles. When enough of these pebbles clump together, they
can collapse under their own weight to form asteroid-sized rocks.
These new-born asteroids gravitationally attract the material
around them until they’ve grown into full-sized planets. 


 


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