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Lunar Plants

Metadata Updated: November 12, 2020

We present an open design for a first plant growth module on the Moon (LPX). The primary science goal of lunar habitat is to investigate germination and initial plant growth when subject to the combined effects of lunar gravity and lunar surface radiation. The LPX module has been designed to be a flexible base unit that can be adapted to fly to the lunar surface on a variety of landers and rovers. LPX has size and shape of a 1U CubeSat (10 cm on a side) and a total mass of 0.3 kg. The base will contain a seed module holding around 50 Arabidopsis seeds and provide ~ 0.5 liter of normal air at standard pressure. By the action of a small pump, water will be released after landing to initiate germination. Images will document the germination, initial growth, phototropism, and circumnutation of the small plants while sunlight remains available. A CO2 sensor tracks the release of CO2 during germination and the subsequent uptake of CO2 by photosynthesis. Simulations indicate that the CO2 peak level will be an increase by 2250 ppm after 2 earth-days and then decline to about 1000 ppm after 7 earth-days. The camera and CO2 sensor interfaces are USB. The water pump initiation requires a 5 volt signal. After initiation of germination by the addition of water, the habitat must be maintained above 22ºC to allow for plant growth and below 27ºC to prevent damage to the plants. This relatively tight temperature tolerance will require thermal control systems using reflecting surfaces and insulation that must be specifically designed for each lander or rover. The plant growth unit will function to tilt angles of 20º along any axis. Total image data volume required to gauge the plant growth rate and leaf area is 1Mbyte (minimum data required) to 40 Mbyte (preferred data). The lid of the habitat will allow adequate sunlight for plant growth. To provide for optimum growth, light levels in the plant growth stage need to be between 75 and 150 umole m-2 s-1 in the 400 to 700 nm interval. Lunar Plant Experiment: Testing plant germination in lunar gravity and ionizing radiation Results of a Center Innovation Fund study at NASA Ames              Completed March 2015 PI: Chris.McKay@NASA.govCo-Is:Robert Bowman, Robert.N.Bowman@nasa.govArwen Davé, Arwen.I.Dave@nasa.govHemil Modi, Hemil.C.Modi-1@nasa.govDavid Smith, David.J.Smith-3@nasa.gov Summary:We present an open design for a first plant growth module on the Moon (LPX). The primary science goal of lunar habitat is to investigate germination and initial plant growth when subject to the combined effects of lunar gravity and lunar surface radiation. The LPX module has been designed to be a flexible base unit that can be adapted to fly to the lunar surface on a variety of landers and rovers. LPX has size and shape of a 1U CubeSat (10 cm on a side) and a total mass of 0.3 kg. The base will contain a seed module holding around 50 Arabidopsis seeds and provide ~ 0.5 liter of normal air at standard pressure. By the action of a small pump, water will be released after landing to initiate germination. Images will document the germination, initial growth, phototropism, and circumnutation of the small plants while sunlight remains available. A CO2 sensor tracks the release of CO2 during germination and the subsequent uptake of CO2 by photosynthesis. Simulations indicate that the CO2 peak level will be an increase by 2250 ppm after 2 earth-days and then decline to about 1000 ppm after 7 earth-days. The camera and CO2 sensor interfaces are USB. The water pump initiation requires a 5 volt signal. After initiation of germination by the addition of water, the habitat must be maintaine

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Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Publisher Space Technology Mission Directorate
Unique Identifier Unknown
Maintainer
Identifier TECHPORT_12080
Data First Published 2015-03-01
Data Last Modified 2020-01-29
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Harvest Object Id 7e093def-2208-45e7-ac60-44209eb434a4
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL https://techport.nasa.gov/view/12080
Program Code 026:027
Source Datajson Identifier True
Source Hash 3563bc444643f8ab25d6da1ed2107d93a4d7b371
Source Schema Version 1.1

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