[meteorite-list] Stardust Scientist Shares Sights and Sounds of Capsule's Landing After 3 Billion Mile, 7-Year Journey
From: Ron Baalke <baalke_at_meteoritecentral.com>
Date: Thu Feb 2 13:03:37 2006 Message-ID: <200602021801.k12I1vY19130_at_zagami.jpl.nasa.gov> http://www.detnews.com/apps/pbcs.dll/article?AID=/20060202/NATION/602020385/1013/BIZ04 Long nights, chilly days on Stardust mission Scientist shares sights and sounds of capsule's landing after 3 billion mile, 7-year journey. Warren E. Leary New York Times February 2, 2006 A long journey ended and a new one began in the same way, with sleepless nights. On Jan. 15, the sample capsule from the Stardust spacecraft made a triumphant return to Earth, laden with the stuff of comets and stars. After a seven-year swing of almost 3 billion miles through the solar system, it survived a fiery dash through the atmosphere to parachute softly to a landing in the Utah desert. "The re-entry fireball was quite beautiful (what I could see of it over my shoulder through the helicopter window)," wrote Scott Sandford, an astrophysicist who witnessed the event, "and a real relief to see." Sandford, a co-investigator for the mission from NASA's Ames Research Center in California, was the lone member of the agency's science team involved in the capsule recovery. Before, during and after the operation, he filed e-mail dispatches to fellow team members that described not just the process but the anticipation, the apprehension and ultimately the elation of the events. The messages were shared with journalists and others, and some of them are reproduced here. The Stardust captured tens of thousands of dust particles from its 2004 encounter with the comet Wild 2 and thousands more that originated from stars far out in space. The craft's 14-inch-wide collector, filled with a wispy silicon material called aerogel, also snared an unexpectedly large number of particles visible without a microscope. Scientists think the particles are pristine remains of the materials that formed the solar system 4.6 billion years ago and could be a history book describing the origins of the planets. But the success of the $212 million mission depended upon retrieving the Stardust sample capsule from the salt flats at the Air Force's Utah Test and Training range, processing it in a sterile "clean room" at a base on the Army's Dugway Proving Grounds and delivering the collector to the Johnson Space Center in Houston. Recovery specialists marshaled by Lockheed Martin Space Systems and the Army practiced every contingency and then waited and watched, as Sandford recounted in his reports. Friday: "A little over 40 hours from recovery. The Recovery Team has pretty much finished up all its preparations, and we are now mostly taking it easy and saving our energy. Sunday: After the capsule landed during a lull between two storms, Sandford was on the second of three helicopters that flew to the site. "The field conditions were very muddy, but no water got in the SRC, and the SRC itself didn't get too muddy. (Our boots, on the other hand ... ) The recovery went almost perfectly." Monday: "Sorry for the long delay, but I was up 39 hours straight dealing with the recovery and then washing and organizing gear, followed by watching the disassembly of the canister from the back shield and the heat shield. After that I caught some sleep. "Disassembly of the SRC took quite a long time but everything went well. >From what I could see as I monitored from outside the clean room, the inside of the SRC is very clean. It gives the impression it was just assembled yesterday. No water got in the capsule. The canister is closed tight, no dings, dents or scrapes, and no loose aerogel. "It has been a real relief to find out that large chunks of the time I spent in various off-nominal ((unexpected)) recovery rehearsals were all 'wasted' time." Wednesday: "We loaded up all the Sample Return Capsule gear and related hardware onto a flatbed truck and transported it to a waiting C-130 Hercules. Loading the plane was cold work. My parka was stowed in the gear. "A convoy of police cars, vans and a truck were waiting to take us to JSC. It took almost an hour to transfer from the plane to the truck (we were very careful and thorough). "We got a police escort all the way to JSC; police cars took turns dashing ahead of us so they could block all the intersections, so we never had to stop at lights. If we'd added a brass band it would have made a lovely parade. "We arrived at the curatorial building at JSC, and there was a nice little crowd of people there to greet us and give enthusiastic applause (one of the only times in all of this that I got a little choked up) and then I escorted the canister up to the Stardust clean room." "It immediately became obvious that we have lots of wonderful samples." Received on Thu 02 Feb 2006 01:01:57 PM PST |
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