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  1. About the Planets - Science@NASA

    2025年5月28日 · 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: Ceres, …

  2. Common Types of Planets Transform From Puffy Giants Into Super …

    2026年1月12日 · Common types of planets form initially as massive, low-density worlds surrounded by hydrogen and helium atmospheres. Research on V1298 Tau reveals how stellar radiation transforms …

  3. 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 missions.

  4. Solar System Exploration - Science@NASA

    2025年12月4日 · 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 located in the Milky …

  5. Exploring Where Planets Form With The Hubble Space Telescope

    3 天之前 · This collection of new images taken by NASA’s Hubble Space Telescope showcases protoplanetary disks, the swirling masses of gas and dust that surround forming stars, in both visible …

  6. NASA's Mars Sample Return is dead, leaving China to retrieve signs of ...

    4 天之前 · NASA's plans for Mars sample return are effectively cancelled as part of a bill approved by the U.S. Congress, ending efforts to collect Perseverance rover samples that could contain evidence …

  7. Planet Sizes and Locations in Our Solar System - Science@NASA

    2025年4月22日 · 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 order of the …

  8. NASA’s Pandora telescope will study stars in detail to learn about the ...

    2026年1月11日 · The findings from Pandora will complement data from the James Webb Space Telescope to give astronomers more insight into stars and planets outside our solar system.

  9. Planets - NASA Space News

    Uranus and Neptune are not ice giants; University of Zurich research reveals rockier interiors than expected challenging traditional planetary classification...

  10. NASA Planetary Science

    2025年12月11日 · NASA’s planetary science program explores the objects in our solar system to better understand its history and the distribution of life within.