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That's a minuscule number and "influenced" doesn't necessarily mean "aimed them at the Earth." There's a lot of space out there which it takes things a lot of t
by chasing 9y ago
That's a minuscule number and "influenced" doesn't necessarily mean "aimed them at the Earth." There's a lot of space out there which it takes things a lot of time to move through. It takes the Earth a year to go around the Sun. And the Oort Cloud is, like, 100,000 times further away from the Sun than we are.
- Raphmedia 9y agoEven if you ignore possible asteroid impacts, there's no telling what kind of issues having red dwarf star & its brown dwarf companion so close can create.
- JoeAltmaier 9y agoThey went into 'v' orbits, which as I understand it, means steep highly elliptical orbits that come inside the Earth's orbit? Its a lot more crowded in here.
- chasing 9y agoI'm no space science maker person. So take this all with a grain of salt. But. Halley's Comet takes 75 years to make an orbit. It goes out to about 35AU. Let's call that 1 year per AU. That rough, rough number would lead one to conclude that anything from the Oort Cloud moving at a similar speed could take, say, 100,000 years to get here even if it was aimed at us. If triggered by something 70,000 years ago, we'd still have a bunch of millenia to prepare. Anyway. I'm sure I'm completely wrong.