How did our solar system come to be, and when did key events that led to life on Earth occur?
Learn how the solar system was formed over 4.6 billion years ago and how life emerged on Earth. Explore the timeline of events and solve problems with math and science.
The Sun is the center of our solar system and the primary source of energy for all life on Earth. This massive ball of hydrogen and helium governs the motion of planets through its gravitational pull and
Learn how ancient and modern astronomers discovered the planets in our solar system, from Mercury to Neptune. See images, charts and sources of the historical and scientific evidence for
Each object is listed in chronological order of its discovery (multiple dates occur when the moments of imaging, observation, and publication differ), identified through its various designations (including
Portion of the Hora XXI sky chart of the Berlin Science Academy relevant to the discovery of Neptune. This sky chart was completed in 1844, published in 1845, and used in 1846 in the
Explore the history of the solar system from the Big Bang to present day with this interactive timeline. Learn about the formation of planets, moons, asteroids,
The timeline of discovery of Solar System planets and their natural satellites charts the progress of the discovery of new bodies over history. Each object is listed in chronological order of its discovery (multiple dates occur when the moments of imaging, observation, and publication differ), identified through its various designations (including temporary and permanent schemes), and the discoverer(s) listed. Historically the naming of moons did not always match the times of their discovery. Traditionally, the dis
Our solar system began forming in a concentration of interstellar dust and hydrogen gas. The cloud contracted under its own gravity and our proto-Sun formed in the center, surrounded by the swirling
They have compared surface features on planets and moons across the solar system, the orbits of asteroids and comets, and the chemical composition and ages for recovered meteorites.
This is a Timeline of the Solar System from birth to death. The font of the writing decides what field it pertains to, as not all of these events are astronomical. 4.52 BYA: The Uranus Impactor collides with
Explore the formation and evolution of the Sun and planets through images and captions. Learn about the solar nebula, planetesimals, asteroids, comets,
The Solar System, named after the Sun, originated approximately 4.6 billion years ago from the collapse of a molecular cloud, resulting in the formation of the Sun and a protoplanetary disc.
The Solar System consists of the Sun and the astronomical objects gravitationally bound in orbit around it, all of which formed from the collapse of a giant molecular cloud approximately 4.6 billion years ago.
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