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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K’taka HC judge whose controversial remarks triggered controversy expresses regret before open court
Bengaluru: Karnataka High Court judge, Justice V Srishananda, on Saturday expressed regret in open court after facing backlash over his controversial remarks in his recent court hearings, reported Bar and Bench.
Two purported video clips from Justice V Srishananda’s court hearing that show him making inappropriate comments went viral across social media platforms.
On Saturday, Justice Srishananda invited members of the Advocates Association, Bengaluru, and senior lawyers to his courtroom at 2:30 PM, where he read out a note expressing regret for inappropriate comments.
Quoting Advocates Association President Vivek Subba Reddy, Bar and Bench wrote, “He expressed regret for the comments and clarified that it was not his intention to offend any community or members of the Bar. He also requested the association to relay this message to all members of the Bar.”
Reddy further stated, “We also advised him to encourage young lawyers in the courtroom and refrain from making any irrelevant remarks during hearings.”
Another senior lawyer present during the session confirmed to the legal news portal that Justice Srishananda also addressed comments directed at a woman lawyer, who was seen in one of the videos being reprimanded by the judge. The judge Justice Srishananda clarified that his remarks were not intended to target her (woman lawyer) specifically, but rather pertained to the appellant she was representing. “He explained that his comment was meant to imply that the appellant seemed to know a lot about the other party,” said the lawyer.
In addition, Justice Srishananda assured those present that he would avoid making such comments in the future.
The controversy came to light on September 19, when a video clip from an August 28 Court hearing surfaced on social media, showing Justice Srishananda referring to a Muslim-majority sub-locality in Bengaluru’s Goripalya as "Pakistan." Hours later, another video from the same courtroom emerged, in which the judge was seen making a gender-insensitive remark.
Following outrage over the viral videos, a Supreme Court bench led by Chief Justice of India DY Chandrachud, along with Justices Sanjiv Khanna, BR Gavai, Surya Kant, and Hrishikesh Roy, on September 20 took a suo motu cognizance and sought a report from the Karnataka High Court Registrar General in connection with the viral video.
