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
Return to the Lost Planet Return to the Lost Planet Return to the Lost Planet is a 1954 juvenile science fiction novel by Angus MacVicar, published by Burke, London. It is the second of the Lost Planet series, which was adapted for radio and television. There are six novels in the Lost Planet series: "The Lost Planet" (1953), "Return to the Lost Planet" (1954), "Secret of the Lost Planet" (1955), "Red Fire on the Lost Planet" (1959), "Peril on the Lost Planet" (1960) and "Space Agent from the Lost Planet". It was the first science fiction series ever translated into Hebrew and had considerable impact