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It looks a bit like a boat, or a stout fedora. So what the hell is this rusty brown gossamer of a space cloud?
It looks a bit like a boat, or a stout fedora. So what the hell is this rusty brown gossamer of a space cloud?
It’s not yet December, but NASA is already in a festive mood: the Webb and Hubble space telescopes recently imaged MACS0416, a pair of colliding galaxy clusters 4.3 billion light-years from Earth that is bedecked in sparkling lights.