The night sky, at least when you can see it, appears placid, serene and as inviting as a cold brew on a muggy afternoon.

Don’t be fooled. The real universe is a nasty mélange of stuff that’s mostly scorching hot or bitterly cold. The blackness of space is shot through with lethal particles and radiation. Without doubt, the “final frontier,” often depicted as a beguiling playground for our Spandex-attired descendants, is deceptively treacherous.

Not only that, it’s out to get you.

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