High in the Arctic, a cluster of new findings from Greenland is forcing scientists to redraw some of the most basic diagrams about how Earth works. From the deep past of the planet’s magnetic shield ...

At the heart of some of the oldest rocks in the Earth's crust, an international team has identified a chemical signature never observed until now. This major discovery opens a unique window onto the ...

As part of the agency's efforts to enable broader use of space, NASA has released its final goals and objectives for low Earth orbit, defining the long-term approach toward advancing microgravity ...