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Hubble equipment failure means fewer observations, NASA officials say

Hubble has run into more trouble.

Associated Press
In this April 25, 1990 photograph provided by NASA, most of the giant Hubble Space Telescope can be seen as it is suspended in space by Discovery's Remote Manipulator System (RMS) following the deployment of part of its solar panels and antennae. This was among the first photos NASA released on April 30 from the five-day STS-31 mission. The Hubble Space Telescope, one of NASA'S crowning glories, marks its 25th anniversary on Friday, April 24, 2015. With more than 1 million observations, includin
In this April 25, 1990 photograph provided by NASA, most of the giant Hubble Space Telescope can be seen as it is suspended in space by Discovery's Remote Manipulator System (RMS) following the deployment of part of its solar panels and antennae. (The Minnesota Star Tribune)

CAPE CANAVERAL, Fla. — Hubble has run into more trouble.

The space telescope slipped into a hibernating state more than a week ago when one of its three remaining gyroscopes — part of the pointing system — malfunctioned. The same device had been acting up for months and disrupting scientific operations.

NASA said Tuesday that attempts to fix it failed and it will operate with just one gyroscope, which will limit its scientific capability.

The switch will keep Hubble idle until mid-June. The telescope won't be as nimble as before and will take longer to zero in on targets. Hubble won't be able to conduct as many observations, but should be able to keep making discoveries the rest of this decade and next, according to officials.

''We do not see Hubble as being on its last legs," said NASA project manager Patrick Crouse.

The space agency is not considering a mission to boost the observatory to a higher orbit for now in order to extend its life, said Mark Clampin, NASA's astrophysics director.

A billionaire who's bought his own SpaceX flights had offered to sponsor and carry out the job. Clampin said the risks outweigh the potential benefits and that more analysis will be needed.

Hubble rocketed into orbit in 1990, but the jubilation quickly ended when scientists discovered its blurry vision due to a misshapen mirror. Repairs by spacewalking astronauts restored its eye on the cosmos, enabling the telescope to behold ancient galaxies and other jewels of the universe in stunning detail.

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Hubble got six new gyroscopes during astronauts' final visit in 2009, but three of them have not worked for years. The devices' spinning wheels keep the telescope stable and looking the right way by tracking Hubble's rotation and position in space.

One of the two remaining gyroscopes will be used for pointing, while the other remains in reserve for future use.

Hubble's bigger and more powerful successor, the Webb Space Telescope, launched in 2021.

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The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute's Science and Educational Media Group. The AP is solely responsible for all content.

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MARCIA DUNN

Associated Press

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