Astronomers have found thousands of exoplanets around single stars, but few around binary stars—even though both types of stars are equally common. Physicists can now explain the dearth.
Launched between 1971 and 1987 primarily to collect intelligence data on foreign weapon testing, the last satellites in the JUMPSEAT family were withdrawn ...
The name Jumpseat was first revealed in a 1986 book by the investigative journalist Seymour Hersh on the Soviet Union’s 1983 ...
Low-Earth orbit is more crowded—and fragile—than it looks. Satellites constantly weave past each other, burning fuel and ...
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