In England it is known as the "Plough," in Germany the "Great Cart," and in Malaysia the "Seven Ploughs." Since humanity first turned its eyes skyward, the seven northern hemisphere stars that compose the "Big Dipper" have been a welcome and familiar introduction to the heavens.

NASA researchers hope to learn more about the mountain, how it formed, and hopefully learn more about the history and geology of Mars.

PROVIDENCE, R.I., Feb.

The camera at the end of the robotic arm on NASA's Mars rover Curiosity has its own calibration target, a smartphone-size plaque that looks like an eye chart supplemented with color chips and an attached penny.

Researchers using NASA's Mars Reconnaissance Orbiter have found possible flowing water on Mars.