National Historic Landmark · neutral buoyancy pool · Huntsville, Alabama

Neutral Buoyancy Space Simulator

Historic astronaut training facility in Huntsville, Alabama. Built 1967. Added to the National Register in 1985, and a National Historic Landmark.

1979- Hubble Astronaut Training (4526166494)Around Marshall (Neutral Buoyancy Simulator)CarolynSGriner3Details of Control Room, Water Control, and Neutral Buoyancy Simulator Complex (sheet 11 of 11)
Photos via Wikimedia Commons · 4 in the Commons category

What it is

The Neutral Buoyancy Simulator was a neutral buoyancy pool located at NASA's George C. Marshall Space Flight Center (MSFC). The simulator was used from 1968 through its decommissioning in 1997. Marshall recognized the need for underwater simulations of extra-vehicular activities (EVAs) and developed three successively larger tanks for the purpose. The Neutral Buoyancy Simulator contributed significantly to the American crewed space program. Astronauts involved into Skylab, the Space Shuttle, Hubble Space Telescope, and the International Space Station missions trained in the facility. Until Johnson Space Center constructed the Weightless Environment Test Facility in the mid-1970s, MSFC had the only NASA-owned test facility that allowed engineers and astronauts to become familiar with the dynamics of body motion under weightless conditions.

Text from Wikipedia, CC BY-SA 4.0.

The record

Property typeStructure
AddressGeorge C. Marshall Space Flight Center, Huntsville, AL
CountyMadison County
ListedOct 3, 1985
Listed forEngineering
Level of significanceNational
Reference number85002807
Built1967 · more from the 1960s
Type of placeneutral buoyancy pool
Contributing resources1 structure

The nomination form, the document that argues why this place matters, is in the National Archives: Read the nomination ↗

Visiting

AddressGeorge C. Marshall Space Flight Center, Huntsville, AL
Coordinates34.6539° N, 86.6781° W · Directions ↗
Also in Huntsville78 listed places in Huntsville →
Nearest national park unitRussell Cave National Monument · 54 miles · on Park Atlas
Listing on the Register does not open the door. Unless a museum or park runs it, treat this as private property and see it from the sidewalk.

Explore

Map

Local history books for Huntsville

We earn a small commission if you buy through these links. It does not change what we list.

  • Huntsville Textile Mills and Villages
    Terri L. French, 2017
    Find at Bookshop.org
  • Legendary Locals of Huntsville
    Leslie Nicole Thomas, 2015
    Find at Bookshop.org
  • Huntsville
    John F. Kvach, 2013
    Find at Bookshop.org

Guidebooks to historic places and travel in Alabama

  • Iron & steel
    James R Bennett, 2010
    Find at Bookshop.org
  • Exploring Wild Alabama
    Kenneth M. Wills and Dr. L. J. Davenport, 2016
    Find at Bookshop.org
  • Haunted Talladega County
    Kim Johnston and Shane Busby, 2015
    Find at Bookshop.org

Titles come from Open Library's catalog, matched by subject heading or by title.

Reference

Questions people ask

When was Neutral Buoyancy Space Simulator listed on the National Register?

Oct 3, 1985. It is also a National Historic Landmark, the higher of the two designations.

Source: National Park Service

When was Neutral Buoyancy Space Simulator built?

1967.

Source: Wikidata

Where is Neutral Buoyancy Space Simulator?

George C. Marshall Space Flight Center, Huntsville, Madison County, Alabama. The nearest national park unit is Russell Cave National Monument, 54 miles away.

Source: Russell Cave National Monument

Where is the nomination form for Neutral Buoyancy Space Simulator?

The National Archives holds the nomination form, the document that made the case for listing.

Source: National Archives

Is there cell service at Neutral Buoyancy Space Simulator?

FCC coverage maps show Verizon 5G, AT&T 5G, and T-Mobile 5G at the listed point. Coverage indoors and behind old masonry is another matter.

Source: FCC Broadband Map

Sources

Location, type and contributing counts come from the National Park Service's National Register spatial data. Listing dates come from the National Register office's spreadsheet where it carries the listing. Construction date, architect, style, photograph and encyclopedia link come from Wikidata and Wikimedia Commons, matched on reference number 85002807. Nothing here is transcribed by hand. The nomination form and photographs ↗ at NPGallery are the original nomination as filed with the National Park Service, and the form is often the best description of the place. The description under "What it is" is the opening of the Wikipedia article, CC BY-SA.