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Problem with Propulsion in Ariane Launch.
July 16, 2001
Astronauts Install New Airlock
Problem with Propulsion in Ariane Launch
Solar Plane Completes Test Flight
ASTRONAUTS INSTALL NEW AIRLOCK
Astronauts Michael Gernhardt and James Reilly II completed a six-hour spacewalk Saturday night to install a new airlock on the International Space Station. The $164 million airlock will allow astronauts to leave the station without having to depressurize an entire module. Two more spacewalks are planned for this week to attach high-pressure gas tanks for the airlock. The Space Shuttle Atlantis is expected to return to Earth on July 23.
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PROBLEM WITH PROPULSION IN ARIANE LAUNCH
An Ariane 5 rocket placed two satellites into flawed orbits on Thursday evening. An investigation is underway, but initial reports indicate it was a problem with the rocket's upper stage. The ESA communications satellite, Artemis will have enough fuel to reach its proper orbit, but this will cut its lifespan dramatically because it won't have enough fuel to maintain its orbit. The other Japanese BSAT-2b satellite is a total write-off.
SOLAR PLANE COMPLETES TEST FLIGHT
NASA's Helios solar-powered aircraft completed its first test flight on Sunday when it launched from Hawaii's Barking Sands and reached an altitude of 22,800 metres. Later this year, managers hope to send the airplane as high as 30,000 and break the record for unmanned flight. NASA hopes a future version of the Helios will eventually serve some functions currently handled by satellites - at a fraction of the cost.
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