What are globular clusters?

Globular clusters are big groups of stars that all hang out together in space like a giant star party.

Imagine you're at a playground with hundreds of your friends, everyone is running around, playing games, and having fun. Now imagine if all those friends suddenly stopped moving and just stayed close together, forming one big, tight group. That's kind of what a globular cluster looks like, it’s a bunch of stars, all packed closely together, floating in space.

In a globular cluster, the stars are very old, some are even older than our Sun! They’re like the grandparents at the playground, having been around for billions of years. These clusters are found hanging out near galaxies, sometimes orbiting them like they're dancing together in space.

Think of a globular cluster like a big bunch of grapes, each grape is a star, and all the grapes are stuck together tightly. Just as grapes are all similar but not exactly the same, stars in a globular cluster are similar too, they’re mostly the same age and size.

So next time you see a grape bunch, remember, it's like a little piece of space full of stars!