Venus Express (VEX) was the first Venus exploration mission of the European Space Agency (ESA). Launched in November 2005, it arrived at Venus in April 2006 and began continuously sending back science data from its polar orbit around Venus. Equipped with seven scientific instruments, the main objective of the mission was the long term observation of the Venusian atmosphere.
Venus OrbitThis is the second crewed mission for China's Shenzhou program. Shenzhou-6 began its mission by carrying astronauts Fei Junlong and Nie Haisheng into low Earth orbit. During their mission, astronauts conducted scientific experiments, which mainly had to do with how human body responds to spaceflight. After almost 5 days in orbit Shenzhou-6 deorbited and landed back safely on Earth on 16 October.
Low Earth OrbitCryoSat-1 was launched from the Plesetsk Cosmodrome in Russia on October 8, 2005, using a Rockot launcher. (Rockot is a modified SS-19 rocket which was originally an ICBM designed to deliver nuclear weapons, but which Russia is now eliminating in accordance with the START treaties.) According to Mr. Yuri Bakhvalov, First Deputy Director General of the Khrunichev Space Centre, when the automatic command to switch off the second stage engine did not take effect, the second stage continued to operate until it ran out of fuel and as a consequence the planned separation of the third (Breeze-KM) stage of the rocket which carried the CryoSat satellite did not take place, and would thus have remained attached to the second stage. The upper rocket stages, together with the satellite, probably crashed in the Lincoln Sea. Analysis of the error revealed that it was caused by faults in the programming of the rocket, which had not been detected in simulations.
Low Earth OrbitSoyuz TMA-7 begins Expedition 12 by carrying 3 astronauts and cosmonauts to the International Space Station. Russian Commander, cosmonaut Valery Tokarev alongside Flight Engineers, William McArthur (NASA) & spaceflight participant Gregory Olsen (Space Adventures) will launch aboard the Soyuz spacecraft from the Baikonur Cosmodrome in Kazakhstan and then rendezvous with the station. It landed on April 8, 2006, 23:48:00 UTC
Low Earth OrbitThe GPS-IIR replenishment satellites are produced by General Electric Astrospace (later Martin Marietta and Lockheed Missiles & Space) under a contract issued in 1989, which included 21 satellites based on the commercial AS-4000 bus. These provided improved navigation accuracy and longer autonomous satellite operation than earlier model GPS satellites. The satellites were three-axis stabilized and operated at downlink frequencies of 1572.42 MHz and 1227.6 MHz (L-Band) and 2227.5 MHz (S-Band). Lockheed was responsible for launch and flight operations support of the GPS-IIR through 2006.
Medium Earth Orbit