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Jason 2 preview

The joint American and European satellite project called Jason 2 will monitor global seal levels.

 Mission | Science

Phoenix landing preview

Less than two weeks before the Phoenix spacecraft arrives at Mars, this previews the landing and the planned science on the planet's surface.

 Presentation | Q&A

STS-82: In review

The second servicing of the Hubble Space Telescope was accomplished in Feb. 1997 when the shuttle astronauts replaced a pair of instruments and other internal equipment on the observatory.

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STS-81: In review

The fifth shuttle docking mission to the space station Mir launched astronaut Jerry Linenger to begin his long-duration stay on the complex and brought John Blaha back to Earth.

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Discovery rolls out

Discovery travels from the Vehicle Assembly Building to pad 39A in preparation for the STS-124 mission.

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Russia launches relay craft, commemorative satellite
STEPHEN CLARK
SPACEFLIGHT NOW

Posted: May 23, 2008

Russia launched four satellites aboard a Rockot booster from the country's northern spaceport Friday, according to news reports.

The 95-foot-tall rocket, capped with a Breeze KM upper stage, lifted off from the Plesetsk Cosmodrome at 1520 GMT (11:20 a.m. EDT). The converted ballistic missile deployed the four payloads into a 900-mile-high orbit less than two hours later, according to Roscosmos, the Russian space agency.

Friday's launch was the first flight of a Breeze upper stage since March, when a similar stage used on the Proton rocket failed and stranded a U.S. communications satellite in a useless orbit. The owners of the AMC 14 satellite declared the craft a total loss to redeem a $150 million insurance payout.

Russian investigators determined the cause of the failure was a ruptured gas duct inside the Breeze M's engine. Engineers said the duct could have burst due to structural erosion, high temperatures and pressure fluctuations, according to International Launch Services, the U.S.-based firm responsible for selling Proton rockets to commercial satellite operators.

ILS officials say they will not resume commercial Proton flights until further analysis is completed this summer.

The Rockot was carrying three Gonets communications satellites and a small spacecraft to commemorate the 50th anniversary of the 1957 launch of Sputnik, the world's first artificial satellite.

The Gonets satellites will be used to relay data and text messages for the Russian military, government agencies and private organizations.

Operated by Gonets SatCom for the Russian government, the spacecraft are designed to last up to seven years. The satellite fleet can provide communications coverage across Russian territory.

The mission's other payload, called Yubileiny, will broadcast audio messages, imagery, and tones similar to the radio signals transmitted by Sputnik, according to a posting on the Web site of NPO PM, a partner in the craft's development.

STS-134 Patch

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