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 ...

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 ...

Meteorites delivered volatiles to Mars much earlier than scientists thought. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A new analysis of a ...

A strange mix of oxygen found in a stony meteorite that exploded over Pueblito de Allende, Mexico nearly 40 years ago has puzzled scientists ever since. Small flecks of minerals lodged in the stone ...

BLOOMINGTON, Ind. -- The process that formed the giant planet Jupiter may also have spawned some of the tiniest and oldest members of our solar system -- millimeter-sized spheres called chondrules, ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. A rare form of helium may have flooded Earth’s core during the ...

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 ...

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 ...

(Image: The Wolf-Rayet star WR 124 in the constellation Sagittarius, imaged by the Hubble Space Telescope.) The prevailing theory of the formation of the solar system is that a large, nearby supernova ...