NASA's two car-sized labs exploring Mars each discovered rocks that neither mission had seen before, revealing a more diverse history for the planet than previously thought. Three major findings happened within the span of seven weeks.

A Mars scientist shares the inside story of the NASA Curiosity rover's poignant first photo of Earth and Mars moon Phobos together in the twilight sky.

American space agency NASA launches the Moon to Mars Architecture Art Challenge as it seeks for images to promote its exploration projects