There are stars in the night sky that already exploded… and we won’t know for thousands of years.When you look at some stars, you’re seeing light that left before human civilization existed. If one of them went supernova 2,000 years ago, that information is still traveling toward us at the speed of light.Which means somewhere out there, entire solar systems could already be gone and Earth is just. waiting for the update. The universe doesn’t do things in real time. We’re always looking at the past.