Scientists taking 'active measures' for asteroid with slight chance of hitting earth.
YR4 has just above a 1% chance of crashing into Earth in 2032, which is why astronomers and space agencies are paying attention to it.
Why the Odds of an Asteroid Striking Earth in 2032 Keep Going Up (and Down)
NASA and European scientists explain how they calculate the probability of the space rock 2024 YR4 impacting our planet, and why it’s not yet time to worry.
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'City-killer' asteroid has a 1-in-43 chance of smashing into Earth in 2032, NASA says
A space rock dubbed 2024 YR4 has a roughly 2.3% chance of smashing into our planet, NASA scientists announced.