See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Earth's core appears to be leaking primordial helium from the Big Bang, ...

Helium-3, a rare isotope of helium gas, is leaking out of Earth’s core, a new study reports. Because almost all helium-3 is from the Big Bang, the gas leak adds evidence that Earth formed inside a ...

This summer, exoplanet science—the study of planets orbiting stars beyond our sun—took a big step forward. Reports of helium ...

Scientists have coaxed one of the universe’s most stubborn elements into a new compound. Formed under intense pressures, the newly discovered compound packs helium atoms into crystalline iron, ...

In the beginning, all was dust and gas. For a while, anyway — until a great gas cloud, called the solar nebula, in what would become our solar system gradually condensed. Then came the Sun. Eventually ...

Seattle-based Interlune announced $18 million in startup capital to begin harvesting helium-3 from the Moon. The private company hopes to expand its resource mining to additional rare metals found on ...