A new era of spaceflight could save astronauts time and cut exposure to cosmic radiation as they rocket to Mars--and beyond. Just before the Artemis II crew began its historic slingshot around the moon this past April, NASA announced plans to build Space Reactor-1 Freedom. SR-1, the first-ever nuclear-reactor-powered interplanetary spacecraft, is meant to fly an uncrewed mission to Mars by the end of 2028, arriving in 2029. A successful mission would herald a new era of more efficient, potentially faster spaceflight--saving astronauts time and cutting their exposure to harmful cosmic radiation as they travel to Mars and beyond. "You wake up to that announcement, and it puts a big smile on your face," says Simon Middleburgh, co-director of the Nuclear Futures Institute at Bangor University in Wales. Running a nuclear reactor in space may sound like lunacy, but it's not.

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Plus: Ukraine says sudden Starlink speed limits disrupted key drone missions. Pig kidneys that were "frozen" for a year have been brought back to life Pig kidneys that were cooled to -150 C and stored in a freezer for months have been successfully rewarmed and shown to work again for the first time, say scientists. The kidneys, which are similar in size to human ones, were left in a glass-like state, in one case for over a year. Once they had been rewarmed, tested in machines, and transplanted into pigs, the kidneys regained their color and made urine--key signs they were working. The results are a big milestone. But the team still needs to establish whether the approach could work for humans.

There are just a few obstacles in the way. Welcome to the second space race. You can be forgiven for experiencing déjà vu. Last time, it was the Soviet Union and the United States vying to be the first to plant some flags. And this time it looks like they're getting ready to set up camp. There will be, the contenders say, bases on the moon, permanently inhabited castles under the stars. The notion of a moon base, fanciful as it might sound, isn't new. But this year, under the leadership of Administrator Jared Isaacman, NASA has been flooding the zone with bold announcements . If all goes according to plan--a plan that will likely cost tens of billions of dollars to start--there will be drones, robotic landers, communication satellites, and a nuclear power plant; there will be plant terrariums and moonquake sensors; there will be mechanized scouts exploring craters for water. NASA is building the first nuclear reactor-powered interplanetary spacecraft. Initial astronaut missions to the lunar surface, which the US is currently planning to start in 2028, will be focused on exploration and technological experimentation. But the idea is that we will--some time in the 2030s--get to a point where there will be habitation quarters for long-term stays, surrounded by a network of scientific research stations, resource mining and processing plants, and landing pads for spaceships.

This is no scoffing matter. The accelerating proliferation of advanced nuclear weapons is bringing'end times' closer by the day H umankind has fearfully and sometimes joyfully anticipated the end of the world ever since it began. The Bible's Book of Revelation speaks of "end times", a period of tribulation, war, famine, plague, floods and environmental catastrophe that may seem a less absurd prospect today than perhaps it once did. Christian evangelicals believe that, in the final rapture, a chosen few - the righteous or the "elect" - will be saved while sinners burn. Matthew's gospel predicts most people will defy, ignore or ridicule warnings of imminent Armageddon.

Fuel particles embedded in the dirt aren't changing much, and that's actually a good thing. More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results. A general view shows the current state of the 18.6-mile Chernobyl Exclusion Zone. Established in the aftermath of the 1986 nuclear disaster at the Chernobyl Nuclear Power Plant, the 1,003-square-mile restricted area remains under strict state control. Just over 40 years ago, what began as a routine safety test at the Chernobyl nuclear power plant (or Chornobyl in Ukranian) in Soviet Ukraine spiraled into one of the most recognizable disasters of the 20th century.

Another OpenAI employee tasked with ensuring the safety of its models has left. Following his departure, David Robinson, who used to lead the writing of safety reports that were published with model launches, wrote an article for The Atlantic that warned of a "broken" company culture. Among the many points warning of the dangers associated with the trajectory that AI development is on, the former safety lead explained that "as the company springs from one launch to the next, it is failing to achieve the level of care that I believe is needed." Instead of sprinting ahead with more advanced frontier AI models, Robinson argued that these companies should be modeled after nuclear power plants or busy airports that have "layers of redundancy and careful, time-consuming planning, so that the occasional and inevitable human error does not open a door to disaster." Comparing AI misalignment incidents to a nuclear meltdown, Robinson said that OpenAI and its competitors don't have as much redundancy and rigor as power plants with multiple layers of protection.

Workers wearing protective suits and masks conduct a decommissioning operation at the No. 2 reactor building of the tsunami-crippled Fukushima No.1 nuclear power plant in Fukushima Prefecture, in January. Tokyo - Tokyo Electric Power Company Holdings on Friday started inspections of the interior of the meltdown-stricken No. 2 reactor at the Fukushima No. 1 nuclear power plant, inserting a robotic arm into the containment vessel. The company aims to better understand conditions inside the reactor at the plant in Fukushima Prefecture, as it plans to extract some nuclear fuel debris on a trial basis. The work is expected to take about half a year. According to Tepco, the latest operation involves cutting some rails and cables that could obstruct the robotic arm's entry with high-pressure water jets and collecting 3D data and images from inside the containment vessel.

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Russia and Iran built alternative financial channels, nuclear cooperation at Bushehr and energy projects to counter Western sanctions, a nonpublic 2024-2026 roadmap reveals.