Jupiter to several seconds, and short bursts (or S-bursts) that had a duration of less than a hundredth of a second. Scientists discovered that there were three forms of radio signals transmitted from Jupiter. Since 1973 a number of automated spacecraft have visited Jupiter, most notably the "Pioneer 10" space probe, the first spacecraft to get close enough to Jupiter to send back revelations about the properties and phenomena of the Solar System's largest planet. Flights to other planets within the Solar System are accomplished at a cost in energy, which is described by the net change in velocity of the
Puzzle of the Space Pyramids Puzzle of the Space Pyramids Puzzle of the Space Pyramids is a fix-up science fiction novel by Eando Binder. It tells the story of several successive space expeditions to Mars, Venus, Mercury and Jupiter. As each planet is found to harbor various (usually hostile) alien life, each expedition must survive both the elements and the attacks by the natives. The continuing thread through the expeditions is the discovery of an ancient pyramid on each planet they explore. These puzzling pyramids were apparently built by an unknown primeval civilization far older than and unrelated to the current inhabitants. When a final