An extraordinary celestial event could unfold in the night sky in less than a decade if an asteroid passing Earth collides with the Moon. The impact of asteroid 2024 YR4 into the lunar surface would likely send debris flying out towards us, resulting in a unique meteor shower composed entirely of moon dust.

What makes the Perseids great is the quantity of meteors, their showy quality and the August summer nights when you can view them. But this year, there's a caveat.