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First Extrasolar Object Observed Racing Through Our Solar System (space.com)
Enigma2175 writes: For the first time, scientists have observed an object they believe came from outside our solar system. The object is in a hyperbolic orbit that will send it back into interstellar space. From Space.com: "The object, known as A/2017 U1, was detected last week by researchers using the Pan-STARRS 1 telescope in Hawaii. 'It's long been theorized that such objects exist -- asteroids or comets moving around between the stars and occasionally passing through our solar system -- but this is the first such detection,' Chodas added. 'So far, everything indicates this is likely an interstellar object, but more data would help to confirm it.' It's unclear what exactly this thing is. When A/2017 U1 was first spotted, it was thought to be a comet (and was therefore given the moniker C/2017 U1). But further observations have revealed no evidence of a coma -- the fuzzy cloud of gas and dust surrounding a comet's core -- so the object's name was amended to its current asteroidal designation."
Sure, objects have been observed with hyperbolic orbits before. But I believe all of them have been shown to be comets and all had significant evidence that they had received a gravity boost from one of the planets kicking their orbits up JUST enough to exit the solar system. This one is not a comet, is way out of the plane of the planets (unlikely it has received any gravity boosts) and at least initial observations suggest it has more than enough energy to leave the solar system. So it is highly likely that all other hyperbolic objects were from the Oort cloud while this is very likely an object from interstellar space.