 |
|
|
One month
ago, on September 27, the Hubble Space Telescope was rendered useless by an electrical
malfunction that caused the spacecraft’s data formatter, which is used to send
information to Earth, to stop working.
Two weeks later, NASA engineers switched Hubble’s computers
to a backup formatter, but unfortunately to no avail, since the latter reset
only a few hours after in had been turned on. To top that off, a backup
computer the engineers used to manage cameras and other several instruments
also reset, lead systems engineer for Hubble at NASA's Goddard Space Flight
Center in Greenbelt, Maryland, having stated at that time that an electrical
short or open circuit had given rise to the issue.
Nevertheless, on October 23, the backup system was turned
back on.
The Telescope's problems appear to have been solved recently, since
astronomers from the Space Telescope Science Institute in Baltimore released an
image showing a pair of smoke-rings galaxies known as Arp 147, which was
captured by Hubble’s Wide Field Planetary Camera 2.
The image of the galaxies, which are located in the
constellation of Cetus, were taken on October 27 and 28.
Hubble Space Telescope was carried into orbit by the Space
Shuttle Discovery in April 1990, but because the main mirror had been ground
incorrectly, it only became fully
functional three years later, in 1993.
The fourth
servicing mission (SM4) for the spacecraft, which will also be the last one,
had initially been scheduled for October 14, 2008. Still, due to this recent
electrical malfunction, NASA decided to postpone the SM4 until 2009.
The Hubble mission started back in 1990, when the shuttle Discovery
launched and released the telescope into the orbit 304 nautical miles above the
Earth. Since then, it has circled around Earth over 97,000 times, and has
provided numerous answers in ways that would have been impossible from Earth
observations.
The telescope’s substantial help with the astronomy’s progress over the last 19
years is widely recognized. According to the scientists, there are still many
projects that will demand its assistance. In almost two decades of activity, the
Hubble Telescope took over 750,000 photos of distant never before seen places
and has offered answers to many questions related to our surroundings.
© 2007 - 2009 - eFluxMedia