Discover How We Came to Know the Cosmos

Timeline of the Universe

If the universe were a year old, then it would have begun on January 1st at 00:00:00:00.

The Solar System would have formed on the 1st of September, and by the 23rd, the first life would have evolved. Non-avian dinosaurs would have lived between the 26th and 31st of December, and the lineage of humans and chimpanzees would have diverged on December 31st at 20:00.

Humans would have evolved at 23:52, and put a person on the Moon by 23:59:59:54.

Timeline entries link to the following categories:
Space & Time, Mind & Multiverse, and Light & Matter.

Last updated on 25th January 2018 by Dr Helen Klus

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The Star Garden is a science news and science education website run by Dr Helen Klus.

How We Came to Know the Cosmos covers the history of physics focusing on space and time, light and matter, and the mind. It explains the simple discoveries we made in prehistoric times, and how we built on them, little by little, until the conclusions of modern theories seem inevitable. This is shown in a timeline of the universe.

The Star Garden covers the basics for KS3, KS4, and KS5 science revision including SATs, GCSE science, and A-level physics.