Josie and the Pussycats in Outer Space (1972)

S1E6 The Sun Haters

Josie and her friends stumble upon a group of giants who are sensitive to sunlight and end up hijacking their spaceship. These enormous beings have created a substance that can snuff out the Sun entirely. The giant leader, along with his minions, intends to use Josie’s ship to disperse this destructive fluid.