Federal Emergency Management Agency

WASHINGTON: NASA’s Magnetospheric Multiscale mission (MMS) has set the Guinness World Record for highest altitude fix of a GPS signal, at 70,000 kilometres above the surface of the Earth. Operating in a highly elliptical orbit around Earth, the four MMS spacecraft incorporate Global Positioning System (GPS) measurements into their...

Four asteroids came uncomfortably close to Earth Tuesday, according to NASA’s Asteroid and Comet Watch. Three of the asteroids won’t get within a million miles of the Earth and will be outside the orbit of the Moon and thus comparatively safe. The smallest asteroid will pass within 197,000 miles of Earth,...