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

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit before shoving four of the solar system's planets onto a different course.

New findings offer clues about the ancient origins of asteroids and their potential role in the formation of terrestrial ...

Dr. Jane Huang's research on planet formation in harsh environments, particularly within the Sigma Orionis cluster, offers ...

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

To better understand why the planets have variable compositions ... to the formation of the gas and ice giants in the outer solar system. This first-order model of planetary growth in the solar ...

The organic ingredients to life, hints to where Earth’s water came from, and the fundamental building blocks of our planet ...

In a significant development, a team of scientists from the Physical Research Laboratory (PRL), Ahmedabad, have discovered a ...

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

These embryos, somewhere between small planetesimals and fully formed planets, were abundant during the solar system's formative ... contributed material to the terrestrial planets." ...

"We identified two large asteroids that show similar spectral features to angrites [some of the solar system's oldest ... contributed material to the terrestrial planets." Angrites are a distinct ...