Sunday, October 14, 2018

A scary ride to space

While space travel will never be entirely safe, there has never been a human casualty in orbit or beyond.   Every human life lost in space exploration was lost in ground training and accidents, on reentry, or on launch.  The transition between realms is the scariest part.  (See my review of the heartbreaking yet enriching book Bringing Columbia Home). 
The Soviet/Russian approach to space has been to stick with proven designs, upgrading them gradually, and building dozens of similar capsules and hundreds of boosters that designer Mikhail Tikhonravov would recognize from his 1957-built R-7.
While four cosmonauts were killed in reentry accidents in the Soviet era, launch became routine.  Still, the escape tower on  Soyuz launchers was used twice, in 1975 and 1983, to pull away from malfunctioning boosters, and now we have a third effort.  (No escape rockets on U.S. capsules have ever been deployed, although it's fair to note the Shuttle HAD no escape system when Challenger failed.) 
Then last week, one of the Soyuz's four attached boosters had a problem. The rocket's boosters (liquid-fueled like the main stage) existed because Tikhonravov and engine designer Valentin Glushko could not get large enough engines from Soviet manufacturing and metallurgy of the times to produce very large rocket engines and needed to cluster smaller ones, a process we covered in our book The First Space Race.
Anyway, this 1950s design was still in use thanks to the Russian philosophy of reusing successful designs pretty much forever. One booster apparently had a failed detachment and swiveled into the main body instead of out and away. Cosmonaut Aleksey Ovchinin and astronaut Nick Hague (Colonel, USAF) handled it in the best tradition of space flyers, keeping calm,taking the right actions, running the checklists, as the capsule became a giant, spinning artillery round until the parachutes deployed. 
There is of course an investigation, but the U.S. allowed itself to get into a post-Shuttle world with no way to transport astronauts to the ISS except to buy pricey seats on Russian vehicles.  They will continue to use this route after the booster is declared safe again, because they have no choice: Commercial Crew vehicles from Boeing and SpaceX were supposed to be flying, but the budget was stretched out, as was the schedule.   Let's hope the price for that decision isn't too high. 

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