The best known of these is the MOUSE (Minimum Orbital Unmanned Satellite of the Earth), developed by Professor Fred Singer of the University of Maryland (see diagram). According to Singer ...

Orbital imagery is in demand ... of creating a solar-powered Earth observation satellite that weighs in at less than one kilogram. The joke’s on the skeptics, however — Alba has launched ...

The unmanned satellite then entered a low Earth orbit, with an apogee (highest point) of 939 km and a perigee (lowest point) of 215 km. Once in orbit, Sputnik 1 maintained an orbital speed of ...

Last week the society petitioned the National Science Foundation to “sponsor a study of the utility of an unmanned earth satellite vehicle.” In Jet Propulsion, the society’s journal ...

Not a plane, bird or frog, it’s a 600-pound satellite hurtling ... the higher the orbital debris is, the longer it will take to tumble back to Earth. It takes “several years” for debris ...