What are molecular clouds?

Molecular clouds are giant spaces full of gas and dust, where stars are born.

Imagine you're playing in a big pile of leaves, that’s kind of like a molecular cloud, but way bigger! It's not just leaves; it's mostly hydrogen and some dust, floating around in space. These clouds can be as big as our whole solar system!

When parts of the cloud get squeezed together, maybe by gravity or something bumping into them, they start to heat up. This is like when you squish a balloon, and it gets warm inside. When things get hot enough, stars are born right there in the middle of all that gas and dust.

Sometimes, these clouds can have little pockets where even planets might form, just like how you might find a few special toys hidden among the leaves.

So, molecular clouds are like giant leaf piles, but instead of playing with them, space uses them to make stars and planets!