physical sciences
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NASA Selects 3 Companies to Design a Nuclear Power Plant for the Moon
NASA wants to build and transport a nuclear reactor to the Moon, which would power a sustained human presence for at least 10 years. To that end, the space agency has chosen three companies to develop design concepts for a nuclear fission system to be placed on the Moon in conjunction with the Artemis program.
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Great White Sharks May Have Pushed Megalodon to Extinction
A team of researchers scrutinizing the teeth of great white sharks and those of the extinct giant shark Otodus megalodon believe that competition for food between the two species may have contributed to the megalodon’s extinction.
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This Space Rock’s Weird Chemistry Suggests It Came From a Supernova
A rare stellar death may have formed a rock that eventually landed in Egypt.
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MIT’s ‘Sun-in-a-Box’ Uses Light as an Efficient Form of Energy
Researchers at MIT have built a highly efficient thermophotovoltaic cell that, when paired with renewable resources, efficiently converts incoming photons — particles of light — to electricity. It’s an achievement that could inspire new ways of supplying the world with energy.