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After 3 trips to space, he's realized something no one says.

People who've seen Earth from space often have a pretty cosmic attitude about the place.

After 3 trips to space, he's realized something no one says.
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Gates Foundation

Astronaut Chris Hadfield wants everything and everyone to stop for a minute. Hadfield says we're all going too fast to realize something really important.


Now obviously...

But there are lots of reasons to be hopeful.

And it's not just because of our amazing technology. Though, of course...

There's something basic about the human spirit.

There are so many great signs of progress and things to be thankful for, like incredible advances in survival rates for our youngest people.

And then there's all this.

And this...

And this...

Things are getting better.

And not that slowly either.

So Hadfield says he's optimistic.

Hadfield believes everyone else should be optimistic, too, because it's our best way forward together.

"Remember, nobody changes the world on their own." — Chris Hadfield

Here's the video he made explaining his case.

SOURCE: iSTOCK

Usually the greatest fear after a wild night of partying isn't what you said that you might regret, but how you'll look in your friends' tagged photos. Although you left the house looking like a 10, those awkward group selfies make you feel more like a 5, prompting you to wonder, "Why do I look different in pictures?"

It's a weird phenomenon that, thanks to selfies, is making people question their own mirrors. Are pictures the "real" you or is it your reflection? Have mirrors been lying to us this whole time??

The answer to that is a bit tricky. The good news is that there's a big chance that Quasimodo-looking creature that stares back at you in your selfies isn't an accurate depiction of the real you. But your mirror isn't completely truthful either.

Below, a scientific breakdown that might explain those embarrassing tagged photos of you:

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