Why is Earth the third planet, shouldn't it be the first

Why is the Earth called the third planet? - Quora

Bad Astronomy “Orbit-clearing” planet definition calculated by

Is Earth an Oddball? One of the Strangest Things in the Cosmos

Study finds that humans actually changed the Earth's tilt in the

Earth: A Primer on the Third Rock From the Sun

This Is How the World Ends (and Starts Over Again)

Curious Kids: If the Earth is spinning all the time, why don't

ESA - 10 remarkable Earth facts

Lidunka Vočadlo Culture Online - UCL – University College London

Why We Need to Keep Going to Space and Shouldn't 'Fix Earth First

Interesting Facts About The Planets - Universe Today

Prepare for a 'Gray Swan' Climate - The Atlantic