Next ISS Crew Confident in Safety of Russian Rockets
Despite the setbacks that have plagued Russia’s space program recently, the next crew of astronauts headed for the international space station (ISS) remains confident in its Russian rocket ride.
The spacefliers — two Russian cosmonauts and a NASA astronaut — are slated to launch toward the orbiting lab aboard a Soyuz spacecraft March 29.
They say they do not anticipate any problems, even though Russia has suffered five high-profile space failures over the past year, including the loss of the Mars probe Phobos-Grunt, which crashed to Earth Jan. 15.
“I feel very confident, and we’re ready for a good ride,” NASA astronaut Joe Acaba, a flight engineer on the upcoming Expedition 31 to the space station, told reporters in early January.
2011 was a bad year for the Russian space program. On Feb. 1, a Rockot launch vehicle failed to place an Earth-observing satellite in the proper orbit. A similar problem occurred on Aug. 18, when a Proton rocket delivered a $300 million communications satellite to the wrong orbit.
Less than a week later, on Aug. 24, the unmanned Progress 44 supply ship crashed while making a cargo run to the space station. Officials identified the cause as a problem in the third-stage engine of the vessel’s Soyuz rocket.
Russia uses a similar version of the Soyuz to launch astronauts to the space station so manned flights were put on hold this fall until the problem with the rocket was pinpointed and fixed.
Then, on Nov. 8, the $165 million Phobos-Grunt spacecraft got marooned in Earth orbit shortly after launch when its main engines failed to fire as planned to send the probe toward the red planet. The 14.5-ton probe fell to Earth on Jan. 15, perhaps over the southern Pacific Ocean off the coast of Chile, according to Russian military officials. Phobos-Grunt was supposed to collect soil samples from the martian moon Phobos and return them to Earth.
Finally, on Dec. 23, an unmanned Soyuz-2 rocket crashed just after liftoff, destroying a military communications satellite.
Acaba and his crewmates said they still have a lot of faith in the Soyuz spacecraft and rocket, which both have a long history of solid performance. They pointed out that two crew-carrying Soyuz have launched successfully to the station in the last two months, showing that operations are back to normal.
“Currently, all problems are resolved, and we are sure no problem is expected,” said cosmonaut Gennady Padalka, Expedition 31’s commander. “This is the most dependable spacecraft for the last 40 years.”
Acaba agreed, citing the lessons learned, and changes made, in the aftermath of the Progress 44 crash. “There was a very thorough investigation that went on, and I know NASA was involved in looking at the results,” he said. “Everybody is very comfortable with it.”
With the retirement of the space shuttle program last year, NASA is completely dependent on the Soyuz rocket-spaceship combo to ferry its astronauts to and from the orbiting lab. But NASA is encouraging American private spaceflight firms to take over this taxi role, and it hopes at least one company will be operational by 2017.