{"id":28025,"date":"2017-02-08T00:00:00","date_gmt":"2017-02-08T05:00:00","guid":{"rendered":"http:\/\/ashleydev.com\/2017\/02\/08\/nasa-and-nuclear-power\/"},"modified":"2020-08-27T11:36:34","modified_gmt":"2020-08-27T15:36:34","slug":"nasa-and-nuclear-power","status":"publish","type":"post","link":"https:\/\/cna.ca\/fr\/2017\/02\/08\/nasa-and-nuclear-power\/","title":{"rendered":"NASA and Nuclear Power"},"content":{"rendered":"

\"marssoilview\"NASA\u2019s history with nuclear power dates all the way back to the early 1960s when the U.S. Navy launched a navigation satellite powered by nuclear energy.<\/p>\n

Nuclear energy\u2019s ability to withstand the most extreme conditions has made it an important part of space missions, including the Mars 2020 mission. The next journey to the Red Planet will focus on bringing back soil samples and exploring the atmosphere of Mars to determine its habitability for human life.<\/p>\n

NASA<\/a> recently highlighted the significance of nuclear energy stating, \u201cMars, Venus, Jupiter, Europa, Saturn, Titan, Uranus, Neptune, the moon, asteroids and comets. \u00a0A number of these missions could be enabled or significantly enhanced by the use of radioisotope power systems (RPS).\u201d<\/p>\n

A RPS works like this: Through the natural decaying process, isotopes produce a tremendous amount of heat. In the case of an RPS, as the isotope plutonium-238 decomposes the heat is converted into electricity which in turn is used to power travel through space. Plutonium-238 is an artificial element with a half-life of 88 years. The longevity of nuclear energy makes the RPS an ideal and reliable source of power generation even under the harshest of circumstances.<\/p>\n

The challenging environment includes temperature extremes not known to earth. Take the moon for example. Temperatures on the surface of the moon can fluctuate between highs of 125 degrees Celsius and lows of -175 degrees. Another challenge with travelling to the outer reaches of the solar system, such as with the New Horizons missions, is being able to conduct research in the dark, requiring a power source that can still operate without the energy of the sun.<\/p>\n

For the Mars missions, a big factor in power selection is dust. During its infamous dust storms, the red planet can kick up dust to last for weeks at a time, coating \u201ccontinent-sized areas,\u201d according to NASA.<\/p>\n

Nuclear power has the added benefit of being compact.<\/p>\n

\u201cSolar would be too big and we\u2019ve that learned dust in the Martian atmosphere accumulates on the solar cells, so unless you have wind storms to clear them off, you will kill the missions off by running down the batteries,\u201d according to Dr. Ralph McNutt, principal investigator for the New Horizons Pluto Energetic Particle Spectrometer Science Investigation (PEPSSI), from the Johns Hopkins University Applied Physics Laboratory in Laurel, Maryland. \u201cIf you want to run rovers on Mars and do it accurately and if you want to go to the moon and really investigate in permanent shadows you need nuclear power.\u201d<\/p>\n

Compact size isn\u2019t just beneficial, it\u2019s required when working in outer space. Einstein\u2019s theory of relativity (E=Mc2), essentially states that the further the distance you want to travel, the more speed is required, therefore the mass of the object travelling must decrease.<\/p>\n

The Rover for Mars 2020 will be about the size of a car and will measure approximately 7 feet in height. The nuclear powered MARS 2020 mission will launch in the summer of 2020 and could provide new clues to past life on the not so distant planet.<\/p>\n","protected":false},"excerpt":{"rendered":"

NASA\u2019s history with nuclear power dates all the way back to the early 1960s when the U.S. Navy launched a navigation satellite powered by nuclear energy. Nuclear energy\u2019s ability to withstand the most extreme conditions has made it an important part of space missions, including the Mars 2020 mission. The next journey to the Red […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[537],"tags":[],"topic":[],"class_list":["post-28025","post","type-post","status-publish","format-standard","hentry","category-talknuclear"],"acf":[],"yoast_head":"\nNASA and Nuclear Power - Association nucl\u00e9aire canadienne<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cna.ca\/fr\/2017\/02\/08\/nasa-and-nuclear-power\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"NASA and Nuclear Power - Association nucl\u00e9aire canadienne\" \/>\n<meta property=\"og:description\" content=\"NASA\u2019s history with nuclear power dates all the way back to the early 1960s when the U.S. Navy launched a navigation satellite powered by nuclear energy. Nuclear energy\u2019s ability to withstand the most extreme conditions has made it an important part of space missions, including the Mars 2020 mission. 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