What is GRB 970508?

GRB 970508 was a super bright flash in the sky that came from very far away.

Imagine you're playing with your favorite flashlight in a dark room. Now imagine someone turned on a million flashlights all at once, and they were super powerful, like they could light up the whole room, but they were also really far away, so it looked just like a tiny dot of light. That’s what GRB 970508 was, except instead of a flashlight, it came from a star that exploded in space.

GRB 970508 happened about 12 billion years ago, which is almost as old as the universe itself! But we only saw it now because light takes time to travel. It's like sending a message in a bottle across the ocean, you write it, and then you wait for it to come back.

When scientists looked at it, they saw it blinked on very quickly, like a flashlight turning on, and then slowly got dimmer, like when you turn off a light switch. That helped them know it was from something really far away, and that something was probably a very big star that exploded.

So GRB 970508 is kind of like the space version of a really bright, faraway flashlight!