On 1 March 2002, Space Shuttle Columbia lifted off at 5:22 AM CST (11:22 GMT) from Launch Complex 39A, at Kennedy Space Center in Florida. This was to be Columbia's last successful flight. Due to safety concerns, STS-109 was also to be the final manned service mission (SM3B) to the Hubble Space Telescope (HST). (Following the loss of STS-107 on 1 February 2003, it was decided that Shuttles would only fly to ISS) The Crew accomplished capture of HST on 3 March at 3:31 AM CST (9:31 GMT).

No less than five EVAs (Extra-Vehicular Activity or spacewalk), in five consecutive days, were carried out to repair and upgrade the Hubble Space Telescope. That's as heavy a schedule of EVAs as you'll ever see. The EVAs were mounted by two teams of Astronauts: John Grunsfeld - Richard Linnehan and James Newman - Michael Massimino. Astronaut Nancy Currie operated the Canadarm in support.

A number of new Hubble components were on the STS-109 Cargo manifest, for installation on the HST. The major work done on Hubble included installation of the Advanced Camera for Surveys (ACS). This phone booth sized unit will, amongst other things, take part in the search for extra-solar planets. Hubble's two solar arrays were replaced, improving the telescope's ability to power itself. The Near Infrared Camera and Multi-Object Spectrometer (NICMOS) received a new cryocooler, capable of maintaining temperatures as low as -334°F (-203°C). A new Power Control Unit (PCU) was installed as an upgrade to the electrical system. Finally, a fourth Reaction Wheel Assembly (RWA) was added to the previous array of three, to increase the telescope's stability during long photographic exposures.

The Hubble Space Telescope was released back to orbit on 9 March at 4:04 AM CST (10:04 GMT). The mission had gone exactly as planned, and there were no glitches with the work on Hubble. Columbia flew solo for her last two days on orbit. A safe landing was accomplished on 12 March at 3:32 AM CST (9:32 GMT). STS-109 touched down at the Kennedy Space Center Shuttle Landing Facility on Runway 33. Total flight duration: 10 days 22 hours 11 minutes.

Not long after reaching orbit on 1 March 2002, the payload bay doors with their attached radiators were opened to space. One of the payload bay cameras went into action. As these were being tested and downlinked back to Earth, a very shiny crescent shaped chunk of debris was seen spinning slowly away. As it rotated, and piercingly reflected the Sun, it caused something of a furor among many observers on the ground. Some believed it to be an U.F.O. But...it was only junk. A sign (to be sure) of sloppy work on someone's part, but still junk. It appeared to be a slice of metal, and as such, could be dangerous to Columbia on a later orbit should the two of them collide.

In order to clear the air on this event, I have provided an animated GIF of the crescent shaped piece of metal for you to inspect at your liesure. All frames in the animation were captrued from the original VHS tape recorded "live" at the time from NASA Select TV.

In the end, this object created quite a false alarm, drawing attention away from the real anomalies, of which there were several on this flight.

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At all times during this event, the camera was under the control of the INCO in Houston Mission Control.

(INCO - INstrument & Communication Officer - The man in Houston Mission Control Center who is responsible for operating the Shuttle payload bay, and robotic arm, cameras. He also remotely operates the helmet cameras in space suits. In the case of ISS, this officer is referred to as the CATO - Communications And Tracking Officer. In both cases, these persons CONTROL everything which is PERMITTED to go out on broadcast to the public. It is a commonly believed falacy that the cameras are operated by Astronauts & Cosmonauts on the Shuttles, and Space Station. Very little camera work is done by the crews. They're way too busy for that.)

At the end of the day, it's up to YOU to draw your own conclusions.

© 2005 Jeff Challender