NASA Investigates an “Old Faithful” Active Galaxy That Erupts Every 114 Days

Mary W. Jackson: NASA's First Female African American Engineer

As private companies erode government’s hold on space travel, NASA looks to open a new frontier. With companies like Elon Musk’s SpaceX taking off, the space agency is facing a fundamental change in its identity.

Mysterious stripes spotted over Russia in satellite images — and NASA is perplexed