An official attempt to break the Guinness World Record for the largest water balloon fight will be held this Saturday and Stockton. Come "soak the city" at Splash Fest, a free day of fun 2 p.m.

Jezero Crater on Mars was once home to a lake, delta and rivers. See an animation of what it could have looked like when water poured into the crater billions of years ago and present day. Credit: ...