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NASA Chooses Lockheed Martin To Build Nuclear Mars Rocket
The spacecraft will use a reactor from BWX Technologies to travel to the red planet.
NASA and DARPA have chosen Lockheed Martin to build a spacecraft featuring a nuclear rocket engine. The project is known as the Demonstration Rocket for Agile Cislunar Operations (DRACO), and should be ready for trials by 2027, in the hope that it will eventually be used for missions to Mars.
The rocket will use Nuclear thermal propulsion (NTP), which has several advantages over conventional chemical-powered engines. Nuclear power is up to five times more efficient than rocket fuel, which means that future spacecraft will be able to travel significantly further with a larger payload.
“These more powerful and efficient nuclear thermal propulsion systems can provide faster transit times between destinations,” explained Kirk Shireman, VP of Lunar Exploration Campaigns for Lockheed Martin. “Reducing transit time is vital for human missions to Mars to limit a crew’s exposure to radiation”.
The NTP system will use a nuclear reactor to rapidly heat hydrogen propellant to very high temperatures. The gas is then funneled through the engine’s nozzle, creating thrust. “This nuclear thermal propulsion system is designed to be extremely safe and reliable, using High Assay Low Enriched Uranium (HALEU) fuel to rapidly heat a super-cold gas,” explained reactor developers BWX Technologies. “As the gas is heated, it expands quickly and creates thrust to move the spacecraft more efficiently than typical chemical combustion engines”.
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To help alleviate concerns about radioactive leaks, NASA and DARPA will use a conventional rocket to take the new spacecraft out of Earth’s orbit before powering up the reactor after the ship has reached a safe distance.
News
Samsung Galaxy Ring Wearable Will Launch In Eight Sizes
A recent Korean report reveals the model numbers of the new health tracking device, as well as details of its key features.
The global launch of the Samsung Galaxy Ring is hotly anticipated, with details about the next-gen wearable gradually emerging since the company’s teaser announcement back in January. Now, a report has also unveiled the model numbers for the device, suggesting it will be available in eight different sizes.
While Samsung has yet to divulge detailed specs and features of the Galaxy Ring, it’s likely to feature an array of health and sleep monitoring functionalities, while boasting a battery life of up to nine days on a single charge.
As per a Galaxy Club report, there are currently eight confirmed variants of the Galaxy Ring: SM-Q500, SM-Q501, SM-Q502, SM-Q505, SM-Q506, SM-Q507, SM-Q508, and SM-Q509.
However, the mystery shrouding two absent model numbers persists, leaving speculation as to whether they signify additional sizes or if Samsung plans to unveil a later ninth variant of the ring, as previously hinted. There’s conjecture that these models may correspond to US ring sizes 5 and above, commencing with the SMQ500, with subsequent numbers potentially indicating larger ring sizes, possibly reaching up to size 13, aligning with model number SM-Q509.
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Recent Korean reports have shed light on how Samsung’s Mobile eXperience division (MX) collaborated with the Home Appliance department to integrate Samsung Food with the Galaxy Ring: Tailored for daily activity tracking, the Galaxy Ring, when paired with Samsung Food and an intelligent Samsung refrigerator featuring AI vision, delivers personalized dietary guidance based on calorie intake and BMI.
Samsung is banking on the user-friendly interface and high durability of the ring to redefine the healthcare wearables landscape. Meanwhile, Apple is also making strides in the development of a smart ring, aimed at monitoring users’ health biometrics discreetly when worn on the finger. According to the Electronic Times report, Apple has been closely monitoring market interest in this more inconspicuous alternative to a traditional watch.
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