NASA's portable nuclear reactor could power missions to Mars
Washington, May 3: NASA has said that it successfully demonstrated a new nuclear reactor power system that could enable crewed missions to the Moon, Mars and destinations beyond.
NASA announced the results of the demonstration, called the Kilopower Reactor Using Stirling Technology (KRUSTY) experiment on Wednesday at its Glenn Research Center in Cleveland.
The Kilopower experiment was conducted at the US Department of Energy's National Nuclear Security Administration's Nevada National Security Site from November 2017 through March.
Such a demonstration could pave the way for future Kilopower systems that power human outposts on the Moon and Mars, NASA said in a statement.
"Safe, efficient and plentiful energy will be the key to future robotic and human exploration," said Jim Reuter of NASA's Space Technology Mission Directorate in Washington.
"I expect the Kilopower project to be an essential part of lunar and Mars power architectures as they evolve," Reuter said.
Kilopower is a small, lightweight fission power system capable of providing up to 10 kilowatts of electrical power - enough to run several average households - continuously for at least 10 years.
Four Kilopower units would provide enough power to establish an outpost.
The pioneering power system is ideal for the Moon, where power generation from sunlight is difficult because lunar nights are equivalent to 14 days on Earth, said Marc Gibson, lead Kilopower engineer at Glenn.
"Kilopower gives us the ability to do much higher power missions, and to explore the shadowed craters of the Moon," said Gibson.
"When we start sending astronauts for long stays on the Moon and to other planets, that's going to require a new class of power that we've never needed before."
The prototype power system uses a solid, cast uranium-235 reactor core, about the size of a paper towel roll.
Passive sodium heat pipes transfer reactor heat to high-efficiency Stirling engines, which convert the heat to electricity.
The purpose of the recent experiment in Nevada was twofold: to demonstrate that the system can create electricity with fission power, and to show the system is stable and safe no matter what environment it encounters, said David Poston of National Nuclear Security Administration's Los Alamos National Laboratory.
"We threw everything we could at this reactor, in terms of nominal and off-normal operating scenarios and KRUSTY passed with flying colours," said Poston.
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Two FIRs lodged against Mithun Chakraborty for 'provocative' speech
Kolkata, Nov 6: Two FIRs have been lodged against actor-turned-politician Mithun Chakraborty for allegedly making provocative statements during a BJP event in Salt Lake area near Kolkata last month, police said on Wednesday.
The complaints pertain to Chakraborty's speech on October 27 at the Eastern Zonal Cultural Centre (EZCC) in Salt Lake, during a BJP programme attended by Union Home Minister Amit Shah, who was in Kolkata to launch the party's West Bengal membership drive.
The first FIR was filed at the Bidhannagar South police station based on a complaint by an individual, while the second was lodged at Bowbazar police station.
"We have started an investigation into the case," a senior officer of Bidhannagar police said.
Shah was also present at the programme, which was organised to kick off the West Bengal leg of the BJP's membership drive. Shah had also felicitated Chakraborty for being honoured with the Dadasaheb Phalke Award this year.
Although Chakraborty was unavailable for comment, BJP state president and Union Minister Sukanta Majumdar described the FIRs a result of "vendetta politics.".
Majumdar alleged that the TMC government "has once again used the police to unfairly target well-known actor and senior BJP leader Mithun Chakraborty".
He accused the chief minister of employing such tactics "to serve political interests" and claimed that the state government's actions were part of an ongoing attempt to discredit political opponents.
"There is nothing provocative in his speech. These are nothing but attempts to intimidate him by using police as a political tool," he said.
TMC leader Kunal Ghosh dubbed the BJP's allegations as baseless.
"The allegations of political vendetta are baseless. He shouldn't have made such provocative remarks. The law will take its own course," he said.
Chakraborty, who received India's highest film honour, the Dadasaheb Phalke Award, earlier this year, had asserted on October 27 that the 'masnad' (throne) of West Bengal would belong to the BJP after the 2026 assembly elections, promising to do whatever it takes to achieve the goal.
While speaking at the programme, Chakraborty, a BJP leader, said, "In 2026, the 'masnad' will be ours, and we will do everything to achieve the goal."
In an apparent reference to TMC MLA Humayun Kabir's communal remarks aimed at BJP workers during the Lok Sabha elections, Chakraborty had allegedly made provocative remarks.
Chakraborty cautioned that no one should attempt to intimidate saffron party voters into abstaining from voting in the next assembly elections.
He called upon the booth-level workers of his party to resist any such attempts.
