The chances of an asteroid striking Earth within the next decade has doubled in a matter of weeks, according to NASA astronomers.

This asteroid has a 2.3% chance of hitting Earth. That's nearly double the percentage reported earlier this month. But experts say it's still not a huge concern – there's still a 97.7% chance it misses the planet entirely.

YR4 does smash down on the lunar surface, the explosion might be visible from Earth and would leave a new crater on the near side of the moon