Hare-Way to the Stars is a 1958 Looney Tunes short starring Bugs Bunny and Marvin the Martian.
The cartoon starts when Bugs Bunny, feeling the effects of mixing radish juice with carrot juice the night before, unknowingly climbs out of his hole and into a rocket ship that is about to be launched into space. He realizes what has happened once he screws open the tip of the ship, and is immediately hit by the satellite Sputnik and lands on what appears to be a space station. While there, Bugs meets Marvin the Martian who is trying to blow up earth with the Illudium PU-36 Explosive Space Modulator (in reality a stick of dynamite, it is also the same device he tried to use in his debut short Haredevil Hare, though that Space Modulator was Uranium rather than Illudium) because "it obstructs my view of Venus".