ELI5: Explain Like I'm 5

Dwarf spiral galaxy

So basically, there are these little things in space called galaxies. They're like big families of stars and planets that all hang out together.

Some of these galaxies are called spiral galaxies, and they have a special shape that looks like a spinning pinwheel.

Now, a dwarf spiral galaxy is just a smaller version of a spiral galaxy. It still has that pinwheel shape, but it's not as big.

Scientists think that these dwarf spiral galaxies are important because they can help us understand how bigger galaxies form and grow over time. Plus, they're pretty cool to look at!