APOD: 2004 April 1 - April Fools Day More Intense On Mars

APOD: 2004 April 1 - April Fools Day More Intense On Mars: "gravity, the force that opposes comedy throughout the universe, is only about 3/8ths as strong on Mars' surface as it is on planet Earth. Also, a martian day, called a sol, lasts nearly 40 minutes longer than an earth day. "