First GPS III Satellite Fully Integrated, Being Readied for Testing

An artist’s rendering of Lockheed Martin’s GPS III satellite in operation. Image Credit: Lockheed Martin

The development of the most advanced Global Positioning System (GPS) satellite ever built reached an important milestone within the last month. Lockheed Martin announced that the system module of its first next-generation GPS III satellite (Space Vehicle One, […]

NASA Prepares to Stage New Round of J-2X Engine Tests for Mammoth SLS Booster

NASA continues to test the legacy hardware J2X rocket engine, which was used during the Apollo era. Photo Credit: NASA

A liquid-fueled engine, which once formed part of the most powerful rocket ever brought to operational status in human history, will kick off an ambitious series of tests in the coming weeks at […]