* Apollo Missions: The Apollo missions brought back over 380 kilograms (838 pounds) of lunar samples, including dust, rocks, and core samples.

* Soviet Luna Missions: The Soviet Union's Luna missions also collected lunar samples, though in smaller quantities than the Apollo missions.

* Future Missions: Future missions to the Moon, like NASA's Artemis program, will also collect lunar samples.

What is Moon Dust?

Moon dust is very fine, powdery material that covers the surface of the Moon. It's formed from the constant bombardment of micrometeoroids and solar wind. It's abrasive and can be a problem for equipment on the Moon.

Where is the Moon Dust Stored?

The majority of the lunar samples are stored at the Lunar Sample Laboratory at NASA's Johnson Space Center in Houston, Texas. They're carefully curated and studied by scientists around the world.

So, scientists not only have moon dust, they have a lot of it, and it's a valuable resource for understanding the Moon's history and composition.