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

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

    The timeline of discovery of Solar System planets and their natural satellites charts the progress of the discovery of new bodies over history. Each object is listed in chronological order of its discovery (multiple dates occur when the moments of imaging, observation, and publication differ), identified through its various designations (including temporary and permanent schemes), and the ...

  3. Timeline of Solar System astronomy - Wikipedia

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

    Counting them among the planets became increasingly cumbersome. Eventually, they were dropped from the planet list (as first suggested by Alexander von Humboldt in the early 1850s) and Herschel's coinage, "asteroids", gradually came into common use. [136] Since then, the region they occupy between Mars and Jupiter is known as the asteroid belt.

  4. Timeline of Solar System exploration - Wikipedia

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

    Interplanetary space investigations [15] [16] Venera 1: 12 February 1961 First probe to another planet; Venus flyby (contact lost before flyby) [17] [18] [19] Vostok 1: 12 April 1961 First crewed Earth orbiter (Yuri Gagarin) [20] [21] Ranger 1: 23 August 1961 Attempted lunar test flight (failed to leave Earth orbit) [22] [23] [24] Ranger 2: 18 ...

  5. All About January's Rare Planetary Alignment and How to See ...

    www.aol.com/januarys-rare-planetary-alignment...

    Catching a glimpse of the planets will depend on the time of day and their relative distance from the planet at the time. For example, Venus, Saturn and Jupiter are best viewed after sunset at ...

  6. How to see 6 planets align in a rare night-sky parade in ...

    www.aol.com/news/where-see-6-planets-align...

    Four planets — Venus, Saturn, Jupiter, and Mars — are bright enough to see with the naked eye this month. Uranus and Neptune are visible with a telescope. Uranus and Neptune are visible with a ...

  7. List of exoplanets discovered by the Kepler space telescope

    en.wikipedia.org/wiki/List_of_exoplanets...

    On February 26, 2014, NASA announced the discovery of 715 newly verified exoplanets around 305 stars by the Kepler Space Telescope. The exoplanets were found using a statistical technique called "verification by multiplicity". 95% of the discovered exoplanets were smaller than Neptune and four, including Kepler-296f, were less than 2 1/2 the ...

  8. Discovery and exploration of the Solar System - Wikipedia

    en.wikipedia.org/wiki/Discovery_and_exploration...

    Its orbit revealed that it was a new planet, Uranus, the first ever discovered telescopically. [20] Giuseppe Piazzi discovered Ceres in 1801, a small world between Mars and Jupiter. It was considered another planet, but after subsequent discoveries of other small worlds in the same region, it and the others were eventually reclassified as ...

  9. List of exoplanet firsts - Wikipedia

    en.wikipedia.org/wiki/List_of_exoplanet_firsts

    Kepler-62f was the first definite near-Earth-sized planet discovered within its star's habitable zone. [58] [59] First transiting planet discovered in a star cluster Kepler-66b Kepler-67b: Kepler-66 Kepler-67: 2013 NGC 6811 star cluster; these two planets were, at the time of discovery, only two of six total planets known in star clusters. [60]