go to jove.com

MIDDLE SCHOOL

Earth and Space Science

Space Systems

This is a free preview. For full access

Space Systems: Beyond the Solar System

Big Bang

Description

Big Bang

Scientists believe that the universe began about 13.8 billion years ago with an event called the Big Bang. This theory explains how the universe started as a tiny, hot, and dense point before expanding outward. Over time, matter spread out, forming galaxies, stars, and planets.

The Big Bang theory is support...

Transcript

Everything we see around us, from grains of sand to trees, mountains, Earth, galaxies, and the universe, was formed after the Big Bang, a massive explosion that marked the beginning of the Universe.

Around 13.7 billion years ago, everything in the Universe was packed into a single hot, dense, tiny point.

Then, a massive explosion too...

Tags

Big Bang TheoryUniverse ExpansionCosmic Background RadiationGalaxy FormationRedshift PatternUniverse TimelineScientific ModelsElement AbundanceGalaxy MovementUniverse Patterns

More videos by Standards