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Something very big and very dark punched a hole in our galaxy

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What is a blue moon?

Where do bedbugs come from?

What it's like to foster a feisty, cute puppy who also happens to be blind and deaf

What we're learning about Ultima Thule

'Grumpy Cat' wasn't so cranky after all

How does a sloth say 'Thank you'?

58 ways to live a longer life

How to keep biking at 96 years old

What are ultra-processed foods and are you eating too many of them?

Millions of people inhabit this 'hidden continent' that's 94% underwater