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Glenn Extreme Environments Rig (GEER)

GEER is a world-class facility designed to simulate extreme environments

The surface of Venus – here on Earth

The Glenn Extreme Environment Rig (GEER) is a high-tech pressure vessel capable of simulating the temperature, pressure and atmospheric gas mix of many extreme environments in the Solar System and beyond.

These capabilities enable unique science investigations, provide the ability to conduct risk reduction tests on proposed planetary equipment and allow breakthroughs in a multitude of disciplines.

GEER is located at NASA’s Glenn Research Center in Cleveland, Ohio and is currently configured to simulate the atmospheric and surface conditions of Venus.

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In its short operations history, GEER has successfully supported many projects, scientists, and technologists Several peer reviewed papers and numerous conference presentations GEER has produced over 42 publications, abstracts, news articles, among others and counting Logged over 6600 hours simulating Venus surface for various tests and experiments GEER has supported multiple science investigations and studies … Read the rest ⇢

Glenn Extreme Environments Rig (GEER)


NASA’s GEER test chamber can be customized for specific conditions or requirements. The facility has been upgraded to allow the transfer of power and data from a test article while under Venus surface conditions. The standard capabilities include: Dimensions: 3’ ID x 4’ L (internal) – volume: 811 L Pressure (operating): vacuum – 1365 psia … Read the rest ⇢

Image GRC-2017-C-00516

Contact Us

Please submit all inquiries to: Ike Chi, Glenn Extreme Environments Rig (GEER) Project Manager

GEER image

GEER for Venus

Using the Glenn Extreme Environments Rig (GEER) for Venus Research

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