美国国家公共电台 NPR Moonwalkers' Apollo 11 Capsule Gets Needed Primping For Its Star Turn On Earth

（单词翻译）

RACHEL MARTIN, HOST:

The Apollo 11 capsule took astronauts to the first moon landing and back. It is now a priceless museum artifact. Later this year, it'll go on tour around the country for the first time in over 40 years. NPR's Nell Greenfieldboyce reports that before that happens, it has to undergo a painstaking¹ restoration.

NELL GREENFIELDBOYCE, BYLINE²: The Apollo 11 command module³ spent four decades on display in the main lobby of the Smithsonian's National Air and Space Museum. Occasionally, workers would open up its plexiglass case to look it over or put in new lighting⁴.

LISA YOUNG: But it never really went under a full examination or investigative analysis as to all of the certain materials on there, how stable they are.

GREENFIELDBOYCE: Lisa Young is a conservator at the museum who's trying to make sure this capsule doesn't deteriorate⁵. She's working on it now in a restoration hangar outside of Washington, D.C.

YOUNG: And our big job as conservators right now is to figure out if we're going to put it back on display permanently⁶, what could be happening to it in 50 years?

GREENFIELDBOYCE: Inside the capsule, for example, the adhesives⁷ used to stick velcro to the walls are becoming more crumbly and losing elasticity⁸.

YOUNG: So it's starting to have things pop off. So we want to go back in and make sure that all the adhesives remain stable.

GREENFIELDBOYCE: Same with the mint-green paint on those walls. It's starting to flake⁹. Another job on the to-do list, salt removal. The capsule did splash down in the ocean after all.

YOUNG: Salts embed¹⁰ themselves in materials and then creep out later.

(SOUNDBITE OF VACUUM)

GREENFIELDBOYCE: And then there's the dust. Young holds a vacuum near the charred¹¹ heat shield. She uses a small paintbrush to gently sweep off dust.

YOUNG: So you actually just want to loosen the dust so it becomes airborne and goes into the vacuum.

GREENFIELDBOYCE: How long will it take to clean this thing?

YOUNG: Probably like a month just for the surfaces, and then I'll be probably doing a little bit more on the top where we do corrosion¹² removal and fabric¹³ repair.

GREENFIELDBOYCE: Young says the point of all this cleaning and repair is preservation¹⁴, not to make it look shiny and new.

YOUNG: One of the things, you know, about space objects that you want to make sure is that you leave all of its evidence from space.

GREENFIELDBOYCE: So the burn marks from its fiery¹⁵ re-entry and numbers scribbled¹⁶ by astronauts on the walls - all that stays. After the work is done, the Apollo 11 capsule will visit museums in Houston, St. Louis, Pittsburgh and Seattle. Then it returns to the Smithsonian to be displayed in a brand new, environmentally controlled glass case. Nell Greenfieldboyce, NPR News.

(SOUNDBITE OF MUSIC)