Okay kiddo, so there's this thing called Menk. Menk is actually short for Menkar, which is the name of a super bright star that's really far away in space.
Now imagine you're playing a game of space hide-and-seek with your friends, but instead of hiding, Menk is always in the same place in the sky. So if you look up at the sky every night, you'll see Menk in the same spot.
Scientists use Menk to learn more about the universe because it's so bright and easy to spot. They can study its light and figure out what it's made of, how far away it is, and lots of other cool space stuff.
So basically, Menk is a really bright star that helps scientists learn more about space. It's always in the same spot in the sky and is really fun to look at!