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
Mission: Space of human space exploration (Mercury, Gemini, Apollo, the space shuttle program and two crew members aboard the International Space Station). The attraction was built on the former site of Horizons, a dark ride that offered optimistic visions of what life might be like in the future. Horizons closed permanently in 1999 after a few years of sporadic operation; construction began on Mission: Space shortly thereafter. Industry estimates put the cost of developing the new attraction at US$100 million. The pavilion, like others at Epcot, features a VIP lounge for HP employees called The Red Planet Room. Initially it was sponsored