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

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.

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

It is not often that all the planets in the Solar System other than ours are lined up across the night sky for us to see.

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

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

Jan. 15, 2025 — New observational data and simulation models have confirmed a new type of planet unlike anything found in the Solar System. This provides another piece of the puzzle to ...

Astronomers discovered the gas giant planet — dubbed a "hot Jupiter " — in 2016, but have continued to investigate this ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

If planets had social media accounts, the solar system would showcase a frenzy of unique personalities. Mercury tweets at ...

Our Solar System is a carefully balanced celestial dance held together by a virtually perfect balance of gravity and inertia.

New research shows that star activity can distort exoplanet measurements, affecting size, temperature, and atmosphere ...