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 ...

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 ...

The hypothetical object might not have necessarily been a planet, but would have needed to be heavy enough to cause a gravitational disturbance that had lasting effects on the Solar System’s disk and ...

Earliest inner solar system planetesimals shaped the inventory of moderately volatile elements in terrestrial planets.

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

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