AP - Scientists believe NASA's Phoenix Mars lander exposed bits of ice while recently digging a trench in the soil of the Martian arctic, the mission's principal investigator said Thursday.

AP - Two young backpackers rationed peanut butter sandwiches and granola bars, growing hungrier as they wandered for six days in the dense vegetation of Denali National Park, they said Thursday.

AP - President Bush, surveying the aftermath of devastating floods during a lightning-quick tour of the Midwest on Thursday, assured residents and rescuers alike that he is listening to their concerns and understands their exhaustion.

AP - For the second time in 15 years, Keith Aubuchon found himself packing his belongings and evacuating his home to escape a "100-year" flood of the Mississippi River.

AP - The crowd at Tim Russert's funeral Wednesday would have made a great panel on his Sunday morning news show.

AP - When Erica Nelson and Abby Flantz lost their way during an overnight hike into Denali National Park, they decided to keep hiking.

AP - Ernesto Evangelista prefers to pump premium gas into his seven-month-old Nissan Titan, thinking it makes the truck run better.

AP - In March 2003, Zeinab Taleb-Jedi was a middle-aged widow who found herself trapped in a cold, dusty bunker in Iraq as invading U.S. forces began blowing up buildings and inflicting casualties all around her.