About the Planets - Science@NASA
May 28, 2025 · Our solar system has eight planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. There are five officially recognized dwarf planets in our solar system: …
Did a rogue planet reshape our solar system? - Phys.org
1 day ago · The giant planets weren't always where we find them today. Jupiter, Saturn, Uranus and Neptune formed in a more compact configuration and later underwent a violent reshuffling …
NASA/JPL Eyes
NASA’s Solar System Interactive (also known as the Orrery) is a live look at the solar system, its planets, moons, comets, and asteroids, as well as the real-time locations of dozens of NASA …
Solar System Exploration - Science@NASA
Dec 4, 2025 · 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 …
Planet - Wikipedia
The best available theory of planet formation is the nebular hypothesis, which posits that an interstellar cloud collapses out of a nebula to create a young protostar orbited by a …
Planet Sizes and Locations in Our Solar System - Science@NASA
Apr 22, 2025 · Each planet’s width is compared to Earth’s equatorial diameter, which is about 7,926 miles (12,756 kilometers). At the bottom of the page, find a handy list that shows the …
NASA’s Curiosity Rover Parked on a New Spot on Mars—And …
2 days ago · NASA’s Curiosity rover made an intriguing discovery on Mars, adding another layer to our understanding of the planet’s ancient history.
NASA Planetary Science
5 days ago · NASA’s planetary science program explores the objects in our solar system to better understand its history and the distribution of life within.
Saving NASA science: Reflections on a… | The Planetary Society
Dec 8, 2025 · From Our Member Magazine Saving NASA science: Reflections on a historic year for space advocacy Written by Jack Kiraly Director of Government Relations, The Planetary …
NASA’s Webb Detects Thick Atmosphere Around Broiling Lava …
5 days ago · Researchers using NASA’s James Webb Space Telescope have detected the strongest evidence yet for an atmosphere on a rocky planet outside our solar system, as …