Interactive Solar System Tour | 3D Model of the Solar System

Solar System Scope is an incredibly accurate solar system tour, allowing you to explore the solar system, the night sky and outer space in real-time. All of the objects on the tour are accurately

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The Planets | Facts About the Eight Planets & 5 Dwarf Planets

The Planets of the Solar System Detailed information and facts about the eight planets and five dwarf planets in our solar system.

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Formation of Our Solar System | AMNH

The Sun and the planets formed together, 4.6 billion years ago, from a cloud of gas and dust called the solar nebula.

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SOLAR SYSTEM FORMATION — 5 BILLION YEARS A

Gas giants and the inner rocky planets Once condensation began, it was too hot near the Sun for ices and many gases (like The gas giants (Jupiter, Saturn, Neptune, Uranus) began forming soon after

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The Planets In Order | From The Sun, Information, History & Definition

The planets in order from the Sun based on their distance are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Click for more.

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Solar System Timeline

4.59 billion years ago: The giant planets Jupiter, Saturn, Uranus, and Neptune form around the protosun. At least Uranus and Neptune form closer to the Sun than where they are today. One or

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Geologists discover the first evidence of 4.5-billion-year-old “proto

Billions of years ago, the early solar system was a swirling disk of gas and dust that eventually clumped and accumulated to form the earliest meteorites, which in turn merged to form

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How our solar system was born

The hot, rocky material near the centre of the solar system was sculpted into terrestrial planets with metal cores – Mercury, Venus, Earth and Mars. On the cool edges, the gas and ice giants were born

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Planets Of The Solar System Facts For Kids

The planets have been categorized in many ways before, but now we can safely put them into three groups: the gas giants, the ice giants, and the terrestrial planets. Based on their size and

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Solar System Timeline

Learn how the planets, asteroids, comets, and small worlds in our solar system formed and evolved over time. See key events from 13.8 billion years ago to

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A Timeline for Planet Formation

Our solar system began as a collapsing cloud of gas and dust over 4.6 billion years ago. Over the next 600 million years, called by geologists the Hadean Era, the sun and the planets were formed, and

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Interesting Trivia and Quiz Questions About Space

Frequently asked space questions to help you learn about space, astronomy, our solar system, the planets, and beyond!

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Age of the Planets: How Old Are They?

The eldest planet is Jupiter, which was formed shortly after the creation of the Solar system. We know the age of the planets thanks to the radioactive decay of elements found on

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How our solar system was born

Learn how a giant cloud of gas and dust collapsed to form the Sun and the planets 4.6 billion years ago. Find out how asteroids, meteorites and chondrites reveal the history of the solar system.

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Formation and evolution of the Solar System

In roughly 5 billion years, the Sun will cool and expand outward to many times its current diameter, becoming a red giant, before casting off its outer layers as a planetary nebula and leaving behind a

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A Planet Slammed Into Earth 4.5 Billion Years Ago, Forming the Moon

Around 4.5 billion years ago, a planet called Theia is thought to have smashed into newborn Earth. The messy collision kicked up debris, which probably formed our nighttime

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The Nine Planets of The Solar System | Eight Planets Without Pluto

The Nine Planets is an encyclopedic overview with facts and information about mythology and current scientific knowledge of the planets, moons, and other objects in our solar system and beyond.

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Mercury Facts | Information, History, Location, Size & Definition

Mercury is the closest planet to the Sun but, perhaps surprisingly, it does not have the highest temperatures. Click for even more facts.

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Earth Timeline: From 4.5 Billion Years Ago To Today

Over 4.5 billion years ago, our solar system formed from a giant molecular cloud that collapsed under its own tremendous gravity. The hot stew of hydrogen and helium gave birth to our sun and flung out a

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How Many Planets are in our Solar System? | Facts & Amount

The eight planets in our Solar System, in order from the Sun, are the four terrestrial planets Mercury, Venus, Earth, and Mars, followed by the two gas giants Jupiter and Saturn, and the

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Introduction to the planets of our solar system

The Nine Planets is a collection of information about our Solar System intended for a general audience with little technical background. No special expertise or knowledge is needed; all technical and

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Earth Timeline: From 4.5 Billion Years Ago To Today

Learn about the history of Earth from its formation to the present day, with major events and periods. See how life evolved, continents formed, and the atmosphere changed over time.

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Solar System Facts | Information, Size, History and Definition

The planets of the outer solar system are Jupiter, Saturn, Uranus, and Neptune (Pluto is now classified as a dwarf planet): The first thing to notice is that the solar system is mostly empty space.

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