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Nukes on Mars
World Nuclear News, the information arm of the World Nuclear Association which seeks to boost the use of atomic energy, last week heralded a NASA Mars rover slated to land on Mars on Monday, the first Mars rover fueled with plutonium.
“A new era of space exploration is dawning through the application of nuclear energy for rovers on Mars and the Moon, power generation at future bases on the surfaces of both and soon for rockets that enable interplanetary travel,” began a dispatch from World Nuclear News. It was headed: “Nuclear ‘a stepping stone’ to space exploration.”
In fact, in space as on Earth there are safe, clean alternatives to nuclear power. Indeed, right now a NASA space probe energized by solar energy is on its way to Jupiter, a mission which for years NASA claimed could not be accomplished without nuclear power providing onboard electricity. Solar propulsion of spacecraft has begun. And also, scientists, including those at NASA, have been working on using solar energy and other safe power sources for human colonies on Mars and the Moon.
The World Nuclear Association describes itself as “representing the people and organizations of the global nuclear profession.” World Nuclear News says it “is supported administratively and with technical advice by the World Nuclear Association and is based within its London Secretariat.”
Its July 27th dispatch notes that the Mars rover that NASA calls Curiosity and intends to land on August 6th, is “powered by a large radioisotope thermal generator instead of solar cells” as previous NASA Mars rovers had been. It is fueled with 10.6 pounds of plutonium.
“Next year,” said World Nuclear News, “China is to launch a rover for the Moon” that also will be “powered by a nuclear battery.” And “most significant of all” in terms of nuclear power in space, continued World Nuclear News, “could be the Russian project for a ‘megawatt-class’ nuclear-powered rocket.” It cites Anatoly Koroteev, chief of Russia’s Keldysh Research Centre, as saying the system being developed could provide “thrust…20 times that of current chemical rockets, enabling heavier craft with greater capabilities to travel further and faster than ever before.” There would be a “launch in 2018.”
The problem—a huge one and not mentioned whatsoever by World Nuclear News—involves accidents with space nuclear power systems releasing radioactivity impacting on people and other life on Earth. That has already happened. With more space nuclear operations, more atomic mishaps would be ahead.
NASA, before last November’s launch of Curiosity, acknowledged that if the rocket lofting it exploded at launch in Florida, plutonium could be released affecting an area as far as 62 miles away—highly-populated and including Orlando. Further, if the rocket didn’t break out of the Earth’s gravitational field, it and the rover would fall back into the atmosphere and break up, potentially releasing plutonium over a massive area. In its Final Environmental Impact Statement for the mission, NASA said in this situation plutonium could impact on “Earth surfaces between approximately 28-degrees north latitude and 28-degrees south latitude.” That includes Central America and much of South America, Asia, Africa and Australia.
The EIS said the costs of decontamination of plutonium in areas would be $267 million for each square mile of farmland, $478 million for each square mile of forests and $1.5 billion for each square mile of “mixed-use urban areas.” The Curiosity mission itself, because of $900 million in cost overruns, now has a price of $2.5 billion.
NASA set the odds very low for a plutonium release for Curiosity. The EIS said “overall” on the mission, the likelihood of plutonium being released was 1-in-220.
