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Explore the Solar System, a complex assembly of celestial bodies dominated by the Sun, with eight major planets, dwarf planets, and various small bodies like asteroids and comets. The terrestrial planets include Earth, and the gas and ice giants comprise Jupiter and Neptune, respectively. Moons, rings, and the heliosphere add to the system's diversity, all orbiting within the Milky Way.
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The Sun is a G-type main-sequence star that accounts for 99.86% of the Solar System's mass
The Sun provides the light and heat that sustains life on Earth
The Sun formed first, followed by the planets coalescing from the remaining material in a protoplanetary disk
The inner terrestrial planets, Mercury, Venus, Earth, and Mars, are known for their rocky compositions
Gas giants
Jupiter and Saturn, the gas giants, are primarily composed of hydrogen and helium
Ice giants
Uranus and Neptune, the ice giants, contain more ices in their makeup
The inner planets are dense and rocky, while the outer planets are much larger and lack solid surfaces
Dwarf planets, such as Ceres and Pluto, are significant members of the Solar System
Asteroid belt
The asteroid belt contains remnants from the early Solar System that never formed into a planet
Kuiper belt
The Kuiper belt, extending beyond Neptune's orbit, is home to many icy objects, including the dwarf planet Pluto
Scattered disc
The scattered disc is a distant and sparsely populated region where some of the most distant known objects in the Solar System reside
The planets and some dwarf planets of the Solar System are accompanied by a diverse array of moons
Solar wind
The heliosphere is a protective bubble created by the solar wind that extends well beyond the orbit of Pluto
Heliopause
The heliopause is the boundary where the solar wind's influence ends and interstellar space begins
The heliopause marks the outer edge of the Solar System's influence in the cosmos
The Solar System resides in the Orion-Cygnus Arm of the Milky Way galaxy, orbiting the galactic center at about 27,000 light-years away
Local Bubble
The Solar System is part of the Local Bubble, a cavity in the interstellar medium within the Orion Arm
Local Interstellar Cloud
The Solar System is surrounded by the Local Interstellar Cloud
The Alpha Centauri system, including Proxima Centauri, is approximately 4.24 light-years from Earth
The Solar System completes an orbit around the Milky Way's center roughly every 225 to 250 million years
Oort cloud
The hypothesized Oort cloud marks the outer edge of the Solar System, extending up to 100,000 astronomical units from the Sun
00
The ______ System includes eight major planets orbiting a G-type main-sequence star known as the ______.
Solar
Sun
01
The gas giants, ______ and ______, are mainly made up of hydrogen and helium.
Jupiter
Saturn
02
The ice giants, ______ and ______, have a composition that includes more ices.
Uranus
Neptune
