First Native American woman in space steps out on spacewalk

Nicole Mann, a Marine colonel and test pilot, rocketed into orbit last fall with SpaceX, becoming the first Native American woman in space. She is a member of the Wailacki of the Round Valley Indian Tribes in Northern California.

NASA's most requested photo, the ‘Blue Marble', turns 50

It’s an iconic photo of our home planet: The wispy white clouds and ice caps swirling with the blues and tans of the land and sea – all standing in stark contrast to the blackness of space. But you may not know the full story behind this unique view of Earth.