"What we're having here is an asteroid, which is basically a flying mountain in space...getting captured by the Earth's gravity. And they'll be part of the Earth Moon system," he said.
"You're gonna need a telescope...Even then it may be pretty difficult, given its distance. So it's more the idea of it than actually we're getting an extra moon."
"Luckily, at this point, there is nothing to worry about the asteroid coming into the Earth's orbit...if something this size were to hit the Earth, you wouldn't see it coming."
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