A team of researchers recently reported that a little over 4 pounds of helium-3 leak out of Earth every year, an indication that our planet formed in a solar nebula. Helium-3 is a very ancient isotope ...

Approximately 4.6 billion years ago, our solar system formed from a cloud of gas and dust called a solar nebula that swirled around, eventually collapsing under its own gravity into a rapidly rotating ...

Hard and fast details about our solar system’s beginnings are extraordinarily difficult to come by. But a research team using new measurements of pristine magnetic fields within two extremely rare ...

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LIVERMORE, Calif.– The oxygen and magnesium content of some of the oldest objects in the universe are giving clues to the lifetime of the solar nebula, the mass of dust and gas that eventually led to ...

March 28 (UPI) --A rare isotope of helium gas is leaking from the Earth's core, which suggests the planet formed inside a solar nebula, according to a study published Monday in AGU Geochemistry, ...

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 ...

Isotopically anomalous carbonaceous grains in extraterrestrial samples represent the most pristine organics that were delivered to the early Earth. Here we report on gentle aberration-corrected ...