interstellarobject
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Strange interstellar object 'Oumuamua is tiny and very reflective
After no small amount of mystery, we're starting to understand more about 'Oumuamua, the first known interstellar object to visit the Solar System. A newly published study indicates that the object can't be that large, for one thing. As the Spitzer Space Telescope's infrared detection couldn't catch the cigar-shaped entity, that makes it relatively small. It's likely less than half a mile (2,600 feet) at its longest. It also can't have a diameter larger than 1,440 feet, and that figure could be as small as 320 feet.
