The Air Force has declared the latest—and last of its model—Global Positioning Satellite, launched into orbit Aug. 17, to be operational, as of Aug. 27. The Lockheed Martin-built satellite, GPS IIR-21(M), joins 30 other GPS sats currently in the operational constellation. This good news bears out the earlier claim by Space and Missile Center officials that a problem with the previous satellite in the series (GPS IIR-20) did not extend to #21. (SMC release)
A new video gives viewers a taste of what it’s like for airborne firefighting crews trying to hold back the massive fires in Los Angeles. U.S. Northern Command and the National Guard posted the video to Facebook on Jan. 12,...