General Atomics has acquired Longmont, Colorado-based adaptive optics technology developer Guidestar Optical Systems as part of efforts to introduce “groundbreaking” platforms in both the defense and ...

HERE ON PLANET EARTH, the obfuscation is relentless. We squint by day as the firmament pours down on us in blinding waves, veiling the mysteries of space. By night the stars twinkle, twinkle, hiding ...

In this photo taken with long shutter speed, a meteor sparks, lower right, while entering the earth's atmosphere behind an olive tree during the Perseids Meteor Shower, in Fanos village, central ...