He took viewers down memory lane with photos from when he was born to now.
They may look pretty in the night sky, but life on Earth would be chaotic.
He even played gravity-free ping pong.
This is only the third piece of evidence for the civilisation having their own alphabet.
Maybe best to stick to bottled water from now on.
There is a unique way of accessing it.
It's kicking off this year's summer solstice.
These are some of the scariest places on Earth
He went to great lengths to prove a point.
Our planet is just a speck in space
These bricks could cut pollution in half
The tech mogul wants to live forever
Fitbit might have some competition
It would completely change the world as we know it
It shows how Earth is destroyed and what happens after us
So much of our planet's history was discovered in one single location.
The tribe have unusually large spleens that enable them to stay submerged.
They're using a specific animal to learn more about immortality.
It hints at the horrifying reality for those onboard the Titan submersible.
A picture truly shows a thousand words.
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If you want the full terrifying experience, make sure to have your sound turned on.
This could mean more solar storms heading our way.
The 200,000-acre solar farm in Urumqi has the Elon Musk seal of approval.
Beneficial nutrient blood biomarkers included a combination of fatty acids and antioxidants.
They embrace the polar night.