One of the most crucial elements of a forecast is sky conditions. Whether it's sunny, partly cloudy, or storming. Typically, we use radar to detect rain, but when it is not raining, how do we observe ...

Geostationary Earth orbit is back from the dead. A year or two ago, the regime looked like the next graveyard orbit after an onslaught of low-Earth-orbit communications satellites—especially SpaceX’s ...