This device could usher in GPS-free navigation

Don't let the titanium metal walls or the sapphire windows fool you. It's what's on the inside of this small, curious device that could someday kick off a new era of navigation.

A step toward making GPS more resilient to space weather

Societies around the world now depend on satellite-based navigation systems, such as GPS, for a multitude of applications, including transportation, agriculture, military munitions, emergency services, and social networking, ...

Rocket flight to sharpen NASA's study of the sun

It's best not to look directly at the sun unless you're one of NASA's sun-observing instruments. And even then, doing so will cause some damage. Exposure to the sun degrades light sensors of all kinds, from the retinas in ...

The pulse of the Dead Sea

The Dead Sea is shrinking. There are many reasons for this: climate change is a contributing factor, as is human overuse of water as a resource. The sinking water level has a number of dangerous consequences. For example, ...

page 1 from 24