When our solar system formed, Mars formed earlier than Earth, and its composition gives clues about early steps in planet formation. A new UC Davis study overturns previous ideas about how rocky ...

The early solar system is still a bit of a mystery to scientists, but the secret to learning Jupiter's origins might be hidden in these tiny objects.

The early solar system was not a peaceful place. The early solar system was more chaotic than previously thought, according to a new, more precise reconstruction of the early history of several ...

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, ...

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 ...

Bits of glass called Hiroshimaites may have formed by processes similar to those that formed the sun and the planets. When you purchase through links on our site, we may earn an affiliate commission.

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 ...

The Orion Nebula, which our solar system may have resembled some 4 billion years ago. Image: NASA, ESA, M. Robberto (Space Telescope Science Institute/ESA) and the Hubble Space Telescope Orion ...

The universe is a slow-changing place. While it's mostly true that the heavens and the deep-sky objects in it will look ...

A new study of an old meteorite contradicts current thinking about how rocky planets like the Earth and Mars acquire volatile elements such as hydrogen, carbon, oxygen, nitrogen and noble gases as ...