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

While the composition of gas and dust in a molecular cloud is fairly uniform, everything changes once a star begins to form.

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

Uranus has the craziest tilt in your Solar System. Its tilt is about ninety-eight degrees. That means its north pole is ...

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.

Over the next several weeks, astronomers will be looking closely at an asteroid called 2024 YR4 that could be as big as a ...

Over the next several weeks, astronomers will be looking closely at an asteroid called 2024 YR4 that could be as big as a ...

Because many close-matching simulations had the planet-like object swooping through the inner solar system, the researchers created an additional 10,000 simulations including the terrestrial ...

Definition: A terrestrial planet refers to a planet (celestial body) that is made up of silicate rocks or metals. Description: The term terrestrial is derived from the Latin word 'terra', which means ...

The farthest planet from the Sun ... 0.21 miles per second (0.34 km/sec), making these winds supersonic by our terrestrial standards. The recently discovered extraterrestrial jet stream is ...