There's also the fact that it seems to be doing a swing-by on the Sun. To pass f... | Hacker News

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		mirimir on Nov 24, 2017 \| parent \| context \| favorite \| on: Sending a Spacecraft to the Interstellar Asteroid There's also the fact that it seems to be doing a swing-by on the Sun. To pass fairly close to the Earth. But of course, that's why we detected it. Perhaps that are many that we don't detect. Maybe some very fast ones from Sagittarius A* ;)

wallace_f on Nov 25, 2017 [–]

Given 3-a-year assumption, I wonder what the probability is of one, by chance, getting a gravity boost like that to swing right by earth.

mirimir on Nov 25, 2017 | [–]

To me, that implies more than three per year. Or real-time targeting.

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