Question: Which film came out first, Hercules or The Cat from Outer Space?
Sentence (from "Outer space"): In most galaxies, observations provide evidence that 90% of the mass is in an unknown form, called dark matter, which interacts with other matter through gravitational but not electromagnetic forces. Data indicates that the majority of the mass-energy in the observable universe is a poorly understood vacuum energy of space which astronomers label dark energy.
Relevant evidence: No