Over billions of years, the surface of the Moon has been bombarded by solar wind, carrying high-energy particles that include a highly coveted resource, helium-3. Although the element is scarce on Earth, it has recently become in demand by several industries, including those working on quantum computing and nuclear…
Physicists at MIT have spotted the second sound of a superfluid. Besides being pleasantly alliterative, the phenomenon may explain how heat moves through certain rare materials on Earth and deep in space.