Constellation jokes

How do astronomers organize a party? They planet.

Yo hairline so ugly, it looks like a newfound constellation.

What constellation has no hair at all?

Cancer.

So the other day, I was looking up zodiac sign stuff, you know, I'm a real big fan of that, and I come across this thing and it’s like all zodiac signs have their own hairstyles... except Cancer.

Girl: How much do you love me?

Me: Count the stars in the sky.

Girl: Aww, it's infinite!

Me: No, just a waste of time.

What do planets like to read? Comet books!

How does NASA organize a party? -- They planet.

Astronomers got tired of watching the moon rotate around the earth for 24 hours, so they just called it a "day".