A new study posits that dark streaks originally believed to be signs of water on Mars' surface might not be that at all.

Starvation looming, desperate Palestinians surged toward an aid center that Israel says was designed to circumvent Hamas.

NASA hasn't landed humans on Mars yet. But thanks to robotic missions, scientists now know more about the planet's surface than they did when the movie was released.

Scientists have been arguing about the origin of strange streaks on Mars since the earliest missions to the Red Planet.

A new study from the University of Arizona reveals an unexpected way that planets' cores might form in our solar system.

The conference will be held on May 28 and May 29 in Washington, D.C., with panels available via live webcast online.

In 2008, NASA's Phoenix spacecraft made a smooth landing on Mars, completing a nine-month, 422 million-mile journey, setting down in the planet's frigid polar region where scientists hoped to find water. In 2011, The Oprah Winfrey Show broadcast its final original episode after 25 years on the air.