In Depth | Earth – NASA Solar System Exploration
While Earth is only the fifth largest planet in the solar system, it is the only world in our solar system with liquid water on the surface. Just slightly larger than nearby Venus, Earth is the biggest of the four planets closest to the Sun, all of which are made of rock and metal.
In Depth | Our Solar System - NASA Solar System Exploration
Our solar system consists of our star, the Sun, and everything bound to it by gravity – the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune; dwarf planets such as Pluto; dozens of moons; and millions of asteroids, comets, and meteoroids.
RPS 3D Viewer - NASA Solar System Exploration
2025年1月9日 · NASA’s real-time science encyclopedia of deep space exploration. Our scientists and far-ranging robots explore the wild frontiers of our solar system.
In Depth | Sun – NASA Solar System Exploration
The Sun is a 4.5 billion-year-old yellow dwarf star – a hot glowing ball of hydrogen and helium – at the center of our solar system. It’s about 93 million miles (150 million kilometers) from Earth and it’s our solar system’s only star. Without the Sun’s energy, life …
Earth By the Numbers – NASA Solar System Exploration
2025年1月9日 · Solar System Exploration Our Galactic Neighborhood. Skip Navigation. menu close modal Earth By the Numbers More Destinations Click for more Jupiter Click for more Earth Click for more Mercury Click for more Mars Click for …
Images | Galleries – NASA Solar System Exploration
2025年1月9日 · NASA's Cassini spacecraft has detected dust storms on Saturn's largest moon, making Titan the third Solar System body where such storms have been observed.
Titan | Science – NASA Solar System Exploration
2025年1月9日 · Titan is the only other place in the solar system known to have an Earth-like cycle of liquids flowing across its surface as the planet cycles through its seasons. Each Titan season lasts about 7.5 Earth years.
Enceladus | Science – NASA Solar System Exploration
Saturn’s moon Enceladus is a small, icy body, but Cassini revealed this ocean world to be one of the solar system’s most scientifically interesting destinations.
Pluto By the Numbers – NASA Solar System Exploration
2025年1月9日 · Pluto was once our solar system's ninth planet, but has been reclassified as a dwarf planet. It's located in the Kuiper Belt.
Overview | Cassini – NASA Solar System Exploration
Cassini carried a passenger to the Saturn system, the European Huygens probe—the first human-made object to land on a world in the distant outer solar system. After 20 years in space — 13 of those years exploring Saturn — Cassini exhausted its fuel supply.