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  2. Eris (dwarf planet) - Wikipedia

    en.wikipedia.org/wiki/Eris_(dwarf_planet)

    Eris was discovered in January ... The mass of Eris compared to ... It was calculated that a flyby mission to Eris would take 24.66 years using a Jupiter gravity ...

  3. Timeline of discovery of Solar System planets and their moons

    en.wikipedia.org/wiki/Timeline_of_discovery_of...

    Jupiter III Galileo [9] [10] discovered the Galilean moons. These satellites were the first celestial objects that were confirmed to orbit an object other than the Sun or Earth. Galileo saw Io and Europa as a single point of light on 7 January 1610; they were seen as separate bodies the following night. [11] Callisto: Jupiter IV o: 8 January 1610

  4. Timeline of Solar System astronomy - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_Solar_System...

    1979 – Voyager 1 flies by Jupiter and discovers its faint ring system, as well as volcanoes on Io, the innermost of its Galilean moons. [201] 1979 – Voyager 2 flies by Jupiter and discovers evidence of an ocean under the surface of its moon Europa. [202] 1980 – Voyager 1 flies by Saturn and takes the first images of Titan. [203]

  5. Scientists discern internal structure of mysterious dwarf ...

    www.aol.com/news/scientists-discern-internal...

    Dwarf planet Eris, similar in size to its better-known cosmic cousin Pluto, has remained an enigma since being discovered in 2005 lurking in the solar system's far reaches. While Pluto was ...

  6. Dwarf planet - Wikipedia

    en.wikipedia.org/wiki/Dwarf_planet

    Pluto – discovered February 18, 1930, and announced March 13. Considered a planet for 76 years. Explicitly reclassified as a dwarf planet by the IAU with Resolution 6A on August 24, 2006. [55] Five known moons. Eris (2003 UB 313) – discovered January 5, 2005, and announced July 29.

  7. Timeline of Solar System exploration - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_Solar_System...

    Jupiter/Saturn/first Uranus/first Neptune flyby [239] [240] [241] Voyager 1: 5 September 1977 Jupiter/Saturn flyby, first to exit the heliosphere [241] [242] [243] Pioneer Venus 1: 20 May 1978 Venus orbiter [244] [245] Pioneer Venus 2: 8 August 1978 Venus atmospheric probes [246] [247] ISEE-3: 12 August 1978

  8. List of Solar System objects by size - Wikipedia

    en.wikipedia.org/wiki/List_of_Solar_System...

    For example, if a TNO is incorrectly assumed to have a mass of 3.59 × 10 20 kg based on a radius of 350 km with a density of 2 g/cm 3 but is later discovered to have a radius of only 175 km with a density of 0.5 g/cm 3, its true mass would be only 1.12 × 10 19 kg.

  9. Jupiter, ascending: See our solar system’s biggest planet at ...

    www.aol.com/jupiter-ascending-see-solar-system...

    NASA's Juno spacecraft captured this view of Jupiter during the mission's 54th close flyby of the giant planet Sept. 7, 2023.