Lockheed Martin will use a pair of cubesats to test maneuvers needed to eventually plug new technologies into existing satellites on orbit. (Lockheed Martin) WASHINGTON — Satellites are notoriously hard to upgrade. Located anywhere from hundreds of miles to tens of thousands of miles above the Earth’s surface, the machines are difficult to reach physically. For years, engineers have designed satellites with the expectation that the hardware and software they put on orbit with a satellite is all they’d get. That incentivized exquisite satellite designs, built to last many years in space before finally being replaced by a satellite […]