What is a Planet? | Planets – NASA Solar System Exploration
Everyone knows that Earth, Mars and Jupiter are planets. But both Pluto and Ceres were once considered planets until new discoveries triggered scientific debate about how to best describe them—a vigorous debate that continues to this day.
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.
NASA Planetary Science Highlights: 2021
Dec 23, 2021 · Our 2021 round-up of NASA planetary science is packed with the year’s most spectacular images, ground-breaking discoveries, and incredible mission events.
10 Things to Expect in Planetary Science for 2021
Jan 28, 2021 · Here are some of the things to watch for in planetary science, as we continue to explore and learn about our incredible solar system. Deep Space Station 43 officially opened in 1973. It remains the largest steerable parabolic antenna in the Southern Hemisphere.
Planet Compare - NASA Solar System Exploration
2 days ago · 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 | Earth – NASA Solar System Exploration
Our home planet is the third planet from the Sun, and the only place we know of so far that’s inhabited by living things. 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.
About Us – NASA Solar System Exploration
Oct 24, 2024 · We provide the public with reliable, accurate, up-to-date information about the planets, moons, asteroids, comets and everything else in our solar system. We also provide a complete historical record of deep space exploration.
RPS 3D Viewer - NASA Solar System Exploration
Oct 24, 2024 · NASA’s real-time science encyclopedia of deep space exploration. Our scientists and far-ranging robots explore the wild frontiers of our solar system.
NASA's Dawn Spacecraft Begins Science Orbits of Vesta
Aug 1, 2011 · NASA's Dawn spacecraft, the first ever to orbit an object in the main asteroid belt, is spiraling towards its first of four intensive science orbits.
In Depth | Mars – NASA Solar System Exploration
Mars is one of the easiest planets to spot in the night sky – it looks like a bright red point of light. Despite being inhospitable to humans, robotic explorers – like NASA's new Perseverance rover – are serving as pathfinders to eventually get humans to the surface of the Red Planet.