The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

Learn about the new perspective on Earth's reduction of moderately volatile elements, a discovery made possible by meteorites ...

The collapse of a cloud core can be triggered by many factors ... This runaway growth led to the formation of the gas and ice giants in the outer solar system. This first-order model of planetary ...

The formation of our solar system from a singular nebula raises an intriguing question: why did each planet develop with a ...

This may explain the strange properties of the orbits of our solar system's planets, which are not quite ... the nuclear fusion of hydrogen in their cores. Brown dwarfs typically have masses ...

Understanding where Earth's essential elements came from—and why some are missing—has long puzzled scientists. Now, a new ...

For years, scientists have been puzzled about why Earth and Mars have fewer important elements like copper and zinc compared ...

Scientists believe that two asteroids might be fragments of long-lost "planetary embryos" from the early solar system.

Roughly 4.6 billion years ago, the Sun was born from the gas and dust of a nebula that underwent gravitational collapse. The ...

The finding, reported in the science journal Geochimica et Cosmochimica Acta, is significant because the data reported by the ...

The OSIRIS-REx mission returned to the sample to Earth in September of 2023, and these studies show that it contains amino ...