A Martian Halloween . ... Credit Copyright: Wally Pacholka (Astropics.com) Explanation: From sunset to sunrise, an unusually bright yellowish orb will hang in the sky this Halloween: Mars. ... Tonight though, Mars will be nearly as bright as last night, a beacon of extraterrestrial spookiness . Opposite the Sun, Mars will rise just when the Sun sets, set just when the Sun rises, and be visible the entire night. ... NASA Web Site Statements, Warnings, and Disclaimers . ...