The 17 Happiest Science Facts Of All Time
These will make you feel warm inside.
Lovers' heartbeats synchronise when they stare into each other's eyes.
Expressing your gratitude to other people has been shown to make you happier.
Lions cuddle and rub heads to maintain their friendships.
There's a nebula that looks like a manatee, so scientists renamed it the Manatee Nebula in a special ceremony.
Astronauts grew a rose in space just to see if it would smell different than a rose on Earth.
Chimpanzees build a new tree nest to sleep in every night and use the softest leaves as a pillow.
This Californian sea lion can keep a beat.
Dung beetles can use the Milky Way to navigate.
This loggerhead turtle was given prosthetic flippers after losing her own, and now she can swim again.
During the Ice Age, 32,000 years ago, a squirrel buried a seed. Now the seed has been used to grow a flower.
And of course, almost every element in your body was made in an exploding star.
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