A second asteroid almost slipped by Earth undetected this month, and both were closer to our planet than our moon.
Are they gone?
Asteroid 2017 BX came onto observatory radars on January 20th, 2017, and it passed us by at 162,000 miles.
Or 261,000 kilometers, about two-thirds of the way to the moon.
Slooh.com astronomers caught a faint image of 2017 BX, and nicknamed it Rerun, which I'm assuming is because they responded the same way late actor Fred Perry would have had he seen the asteroid.
So, why wasn't this asteroid discovered before it got this close to our planet.
Turns out, Rerun is a small, fast moving rock.
Let me paint a picture for you.
Imagine a killer whale flying through outer space at 17,000 miles per hour.
Actually, if you don't track asteroids for a living, you might not be aware that they pass by Earth, pretty much, every single day
In fact, another asteroid passed by earth the very same day that rewinded.
Only, this one was a lot bigger and a lot farther away like a mile in diameter and six million miles away from earth difference.
So for now, we don't need to panic.
For more science and tech news, check out cnet.com.
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