Most of the atoms in your body are 13.7 billion years old, and being you is just the latest page in the story of their life.
Once they found their way to the Earth, your atoms began to cycle through the air, land, and water.
One of the fastest man-made objects was a space probe called Juno sent to survey the planet Jupiter.
All of the energy around you, from the light bouncing into your eyes to the heat coming out of your toaster, comes from an unbroken chain of events going back to the Big Bang.
The room that you’re in right now is swirling with invisible air currents caused by heat.
There is an invisible field that underlies the entire universe like a net stretching in every direction.
When you take a step, you’re anchored to the Earth by a force. You can jump to overcome it for a moment, but you are always pulled back down.
An incredible fifty percent of the nitrogen atoms in the tissue of any person alive today have originated inside of an industrial machine.
Twenty-one percent of the air that you’re breathing right now is oxygen. Like most elements it’s the remnant of a supernova explosion, one of the most incredible phenomena in the universe.
Hundreds of thousands of years in the future, when even the pyramids have been ground to dust by wind, one human structure on Earth will remain.
Throughout history, people have believed some crazy things.
Carbon dioxide has a pretty rough reputation. You probably know that it’s a gas, and that it’s causing climate change.
If given a time machine, every biologist on Earth would race to be sent back to an inconspicuous shallow rock pool, 4.28 billion years ago.
The double slit experiment is the most famous experiment in quantum mechanics.