An asteroid the size of a car just passed closely by the Earth and NASA was not aware of it until it had already sailed past.
Most of the time you'll suffer a hefty penalty for dipping in early — but not always.
A new asteroid that has been gradually shifting its orbit and moving towards Earth was recently discovered by Radhika Lakhani and Vaidehi Vekariya, two Indian girls in grade 10.
In early June, an asteroid bigger than a football field flew by Earth and was undetected by astronomers until it passed.
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