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8 jaw-dropping photos from NASA's new image gallery

Are your passwords truly safe?

Cranky and unmotivated? Watch a cat video

Computers trained themselves to recognize cats (and what that tells us about how machines learn)

Discover the microbes that live in your cat

BBC's Your Life on Earth offers personal snapshot of a changing world

Does Facebook shelter people from different opinions?

Ryan Gosling eats his cereal in touching tribute to meme-creator

What is the Darknet?

Parents: Have you heard of YouNow? Your teen has.

Hipcamp: It's like Kayak for camping

Google launches YouTube app for kids

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