The physics of light is a lot stranger than you might think.
Scientists don't know what dark matter is, but we know it's real.
They’re 300 million light-years away, but could have big implications here on Earth.
Confused by string theory? We've got you covered.
These stars are the hottest and most massive of their kind.
They were looking at just the right place at just the right time.
Your head might not explode, but it would still be super not pretty.
Measuring the universe isn't easy.
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