The research also found something unusual: it's extremely reflective, potentially up to 10 times more than Solar System comets. Just what caused this isn't certain, though. It could be that 'Oumuamua lost a lot of its surface dirt and dust as it passed near the Sun, which (combined with gas from the object itself) left it covered in reflective ice and snow. This happens with local comets, although not necessarily to this degree.

There's one major problem with verifying details: it's likely too late. The object is now roughly as far from the Sun as Saturn, and that puts it too far away for study by current space telescopes. Whatever its exact nature, we may have to wait a long while to get more answers -- if we get any at all.