HUB­BLE SPACE TELE­SCOPE WORK­ING AGAIN AF­TER 3-WEEK SHUT­DOWN

Apple Magazine - - Summary -

The Hub­ble Space Tele­scope is study­ing the cos­mos once again af­ter a three-week shut­down.

NASA says the or­bit­ing observatory re­sumed sci­en­tific ob­ser­va­tions over the week­end.

Hub­ble’s point­ing sys­tem was com­pro­mised ear­lier this month when an old gy­ro­scope fi­nally failed. The backup did not kick in prop­erly, forc­ing flight con­trollers to come up with a fix. Con­trollers man­aged to coax the backup gy­ro­scope into op­er­a­tion through a va­ri­ety of ma­neu­vers and switches. Three gy­ro­scopes need to be work­ing for op­ti­mal per­for­mance.

Launched in 1990, Hub­ble has made more than 1.3 mil­lion ob­ser­va­tions of stars, gal­ax­ies, black holes and other ce­les­tial tar­gets. Some are more than 13 bil­lion light-years away.

The tele­scope re­sumed op­er­a­tions Satur­day by star­ing down a dis­tant star-form­ing galaxy in the in­frared.

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