Calvin and Hobbes by Bill Watterson for September 21, 1988
Calvin: See any signs of martian life? Hobbes: Not yet... Calvin: Hey, look! It's the old "Viking" spacecraft that landed here in the '70s! Calvin and Hobbes: Blahhh hoop hoop boola ackackack boola... Calvin: That ought to blow wome circuits at NASA! Hobbes: Hee hee hee! I've always wanted to do something like that.