Question: What is the universe made of

Jess Wade answered on 19 Jun 2015:

The universe is made of lots of clouds of dust. the dust contains all we need to begin life and make planets and stars and the solar system. When a little ripple comes through the atmosphere of a cloud, it jiggles all the atoms inside the cloud around. Then they start to collapse in on themselves and all get sucked towards the centre. The centre of the cloud gets really hot, and all the molecules start hitting together and sticking together. They get really hot and then start to form elements like hydrogen and helium, then heavy elements like carbon. Soon the elements do crazy things like make planets, burn into huge glowing stars and make comets. These clouds that exist in the universe make the whole world as we know it! The universe also contains black holes, big, dense gravitational hot spots.