People 268Bruce Lee Film FaceRey Starwars Film Art Actress LoveCute 233This artist’s impression shows how Mars may have looked about four billion years ago. The young planet Mars would have had enough water to cover its entire surface in a liquid layer about 140 metres deep, but it is more likely that the liquid would have pooled to form an ocean occupying almost half of Mars’s northern hemisphere, and in some regions reaching depths greater than 1.6 kilometres.Love Sandy Beach WaveCoffee LoveSouth Korean rapper-singer Psy performs during the 2012 iHeart Radio Music Festival at the MGM Grand Garden Arena in Las Vegas, Nevada in this September 21, 2012 file photograph. Psy, 35, released his much-anticipated new single titled "Gentleman" on April 11, 2013 hoping to repeat the success of "Gangnam Style" that made him the biggest star to emerge from the growing K-pop music scene. He will perform "Gentleman" in public for the first time on Saturday at a concert at Seoul's World Cup stadium but he has been coy about what dance to expect this time, except to hint that it is based on traditional Korean moves. REUTERS/Steve Marcus/Files (UNITED STATES - Tags: ENTERTAINMENT PROFILE)Sad Day Flower NatureChristmas Tree DecorationModel Rashguard Summer Swim KpopGold Sea Beach Black Sunset Ocean NaturePeople 455Small CrocodileTesla Model Red CarKpop Sejung Ioi Girl Cute BlushBeach Stones Sea NatureFunny 48Colorful 110Leaf Green Line Nature PatternBuildings Blue Night City Sky