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

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

Artist rendition of the protosun and the solar nebula. Oxygen isotopes can be altered by ultraviolet light (gold arrows) in this environment as well. Short-lived radiogenic isotopes of aluminum ...

Discover how a giant interstellar cloud known as the solar nebula gave birth to our solar system and everything in it. The solar system as we know it began life as a vast, swirling cloud of gas and ...

New research reveals that Earth and Mars lost essential elements due to violent cosmic collisions, not early planetary formation processes ...

If everything in our solar system formed from the same solar nebula, why do the planets have different compositions? Herbert WichTitusville, Florida To better understand why the planets have variable ...

When you first learned about the Solar System, you probably saw diagrams that made it look orderly, with planets arranged in circular orbits around the Sun on a flat disk. But in reality, our Solar ...

“Asteroids are leftovers from the planetary formation process, so their compositions vary depending on where they formed in the solar nebula,” said Dr. Anicia Arredondo, co-author from the ...

But in reality, our Solar System’s disk is far from flat ... Our s is thought to have emerged from a nebula—a gargantuan cloud of dust and gas—about 4.6 billion years ago. The Sun most likely began ...