Oumuamua continues to perplex astronomers a year after it vanished

A few astronomers wonder whether it could be alien, but ‘Oumuamua is most likely a “slightly weird” asteroid, comet, or space rock. We have all the data we’re ever going to have about ‘Oumuamua,” David Trilling, an astronomer at Northern Arizona University who led Spitzer Space Telescope observations of the object, told Business Insider. Here’s what we know about ‘Oumuamua, why it probably isn’t alien, and how astronomers are preparing for another interstellar object to unexpectedly sail through our solar system.

Source: www.businessinsider.com