What Separates the Inner and Outer Solar System?
Explore what separates the inner and outer solar system, from rocky planets to gas giants. Uncover their unique features and ongoing exploration.
What Separates the Inner and Outer Solar System?
Explore what separates the inner and outer solar system, from rocky planets to gas giants. Uncover their unique features and ongoing
Science 101: The Solar System
How many planets are in the solar system? How did it form in the Milky Way galaxy? Learn facts about the solar system''s genesis, plus
The Solar System
Astronomers speculate there may be more things beyond the Kuiper Belt that are part of our solar system. These speculations include a possible ninth
Science 101: The Solar System
How many planets are in the solar system? How did it form in the Milky Way galaxy? Learn facts about the solar system''s genesis, plus its planets, moons, and asteroids.
Solar System
Inside the Sun''s core hydrogen is fused into helium for billions of years, releasing energy which is over even longer periods of time emitted through the Sun''s outer layer, the photosphere. This
Solar system | Definition, Planets, Diagram, Videos, & Facts
Solar system, assemblage consisting of the Sun and those bodies orbiting it: 8 planets with more than 400 known planetary satellites; many asteroids, some with their own
Solar System – Definition, Facts, Planets
Learn about the solar system in astronomy. Get its definition, discover the planets in order, and get interesting facts.
Solar System
OverviewDefinitionFormation and evolutionGeneral characteristicsSunInner Solar SystemOuter Solar SystemTrans-Neptunian region
The Solar System consists of the Sun and the objects that orbit it. The name comes from Sōl, the Latin name for the Sun. It formed about 4.6 billion years ago when a dense region of a molecular cloud collapsed, creating the Sun and a protoplanetary disc from which the orbiting bodies assembled. The fusion of hydrogen into helium inside the Sun''s core releases energy, which is primarily e
Solar System Exploration
Our solar system includes the Sun, eight planets, five officially named dwarf planets, hundreds of moons, and thousands of asteroids and comets. Our solar system is
In Depth | Our Solar System – NASA Solar System Exploration
Our solar system formed about 4.5 billion years ago from a dense cloud of interstellar gas and dust. The cloud collapsed, possibly due to the shockwave of a nearby exploding star, called a
Solar System
We can study the worlds of our Solar System in more detail than these alien planets, but no other star system so far resembles ours. The contrast
Solar System
We can study the worlds of our Solar System in more detail than these alien planets, but no other star system so far resembles ours. The contrast between these systems and ours helps us
The solar system—facts and information | National Geographic
This digital collage brings together our solar system and points beyond in one view.
The Solar System
Astronomers speculate there may be more things beyond the Kuiper Belt that are part of our solar system. These speculations include a possible ninth planet, which is sometimes referred to as