Our solar system is 4.57 billion years old.

Our solar system is 4.57 billion years old.

One of them formed in relative isolation, collecting material in a protoplanetary disk around it, and eventually forming our Sun, the eight planets, and the rest of our Solar System. Today, scientists proclaim that the Solar System is 4.6 billion years old, give or take a few million years.

How do we know the solar system is 4.5 billion years old?

By studying several things, mostly meteorites, and using radioactive dating techniques, specifically looking at daughter isotopes, scientists have determined that the Solar System is 4.6 billion years old. ... Some elements decay within nanoseconds while others have projected half-lives of over 100 billion years.

By dating the rocks in Earth's ever-changing crust, as well as the rocks in Earth's neighbors, such as the moon and visiting meteorites, scientists have calculated that Earth is 4.54 billion years old, with an error range of 50 million years.