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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. List of multiplanetary systems - Wikipedia

    en.wikipedia.org/wiki/List_of_multiplanetary_systems

    Planet Taphao Thong was discovered in 1996 and was one of the first exoplanets to be discovered. [48] The planet was the first long-period extrasolar planet discovered. The other planets were discovered later. [49] Nu 2 Lupi: Lupus: 15 h 21 m 49.57 s: −48° 19′ 01.1″ 5.65: 47: G2V: 0.906: 5664: 10.36: 3: One of the oldest stars in the ...

  4. Discovery and exploration of the Solar System - Wikipedia

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

    In 1992, the first evidence of a planetary system other than our own was discovered, orbiting the pulsar PSR B1257+12. Three years later, 51 Pegasi b, the first extrasolar planet around a Sunlike star, was discovered. NASA announced in March 2022 that the number of discovered exoplanets reached 5,000, of several types and sizes. [45]

  5. Timeline of Solar System exploration - Wikipedia

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

    This is a timeline of Solar System exploration ordering events in the exploration of the Solar System by date of spacecraft launch. It includes: It includes: All spacecraft that have left Earth orbit for the purposes of Solar System exploration (or were launched with that intention but failed), including lunar probes .

  6. At 3 million years old, this newly discovered planet is one ...

    www.aol.com/3-million-years-old-newly-190348764.html

    A "baby" planet that astronomers recently observed some 430 light-years from Earth may be the youngest planet ever discovered. Forming an estimated 3 million years ago, the planet may seem old to us.

  7. Discoveries of exoplanets - Wikipedia

    en.wikipedia.org/wiki/Discoveries_of_exoplanets

    HD 69830: Has a planetary system with three Neptune-mass planets. It is the first triple planetary system without any Jupiter-like planets discovered around a Sun-like star. All three planets were announced on May 18 by Lovis. All three orbit within 1 AU. The planets b, c and d have masses of 10, 12 and 18 times that of Earth, respectively.

  8. List of exoplanet firsts - Wikipedia

    en.wikipedia.org/wiki/List_of_exoplanet_firsts

    First pulsar planetary system. First planet discovered in a circumbinary orbit PSR B1620-26 b: PSR B1620-26: 1993 Orbits a pulsar and a white dwarf. Discovery confirmed in 2003. First planet discovered in globular cluster PSR B1620-26 b: PSR B1620-26: 1993 Located in Messier 4. First planet discovered in a multiple main-sequence star system 55 ...

  9. Two new planets bigger than Earth possibly found in our solar ...

    www.aol.com/news/2015-01-21-two-new-planets...

    By RYAN GORMAN Scientists may have found Planet X -- the long-rumored object believed to be larger than Earth and further from the sun than Pluto. Planet X and another object dubbed "Planet Y ...