Europe’s third Galileo satellite has transmitted its first test navigation signals back to Earth. The two Galileo satellites launched last October have reached their final orbital position and are in ...
To demonstrate that the sucrose produced through photosynthesis is the decisive signal transmitter, Kircher and Schopfer placed the plants in a room with light but with no carbon dioxide (CO 2) in the ...
A constellation of classified defense satellites built by the commercial company SpaceX is emitting a mysterious signal that may violate international standards, NPR has learned. Satellites associated ...