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  2. Venus - Wikipedia

    en.wikipedia.org/wiki/Venus

    Consequently, Venus transits above Earth only occur when an inferior conjunction takes place during some days of June or December, the time where the orbits of Venus and Earth cross a straight line with the Sun. [185] This results in Venus transiting above Earth in a sequence of currently 8 years, 105.5 years, 8 years and 121.5 years, forming ...

  3. Neptune - Wikipedia

    en.wikipedia.org/wiki/Neptune

    Neptune's mass of 1.0243 × 10 26 kg [8] is intermediate between Earth and the larger gas giants: it is 17 times that of Earth but just 1/19th that of Jupiter. [g] Its gravity at 1 bar is 11.15 m/s 2, 1.14 times the surface gravity of Earth, [71] and surpassed only by Jupiter. [72] Neptune's equatorial radius of 24,764 km [11] is nearly four ...

  4. Discovery of Neptune - Wikipedia

    en.wikipedia.org/wiki/Discovery_of_Neptune

    As the facts became known, some British astronomers pushed the view that the two astronomers had independently solved the problem of Neptune, and ascribed equal importance to each. [ 3 ] [ 20 ] But Adams himself publicly acknowledged Le Verrier's priority and credit (not forgetting to mention the role of Galle) in the paper that he gave to the ...

  5. Test your knowledge with these 100 fascinating facts - AOL

    www.aol.com/news/test-knowledge-72-fascinating...

    Venus is the only planet to spin clockwise. ... Interesting facts for kids. Bats are the only flying mammals. Tomatoes are a fruit, not a vegetable. Chihuahuas are the smallest dog breed.

  6. Neptune’s clouds have disappeared, and scientists think they ...

    www.aol.com/neptune-disappearing-clouds-may...

    Four years ago, astronomers noticed the abundant clouds on Neptune had largely disappeared. Telescope data may have helped researchers figure out why. Neptune’s clouds have disappeared, and ...

  7. 11 must-see astronomy events in 2025 - AOL

    www.aol.com/weather/11-must-see-astronomy-events...

    The planets Venus, bottom, and Jupiter, top, light the sky above Matthews, N.C., Monday, June 29, 2015. (AP Photo/Chuck Burton) Stargazers should prepare to lose sleep on Tuesday, Aug. 12, as two ...

  8. Observations and explorations of Venus - Wikipedia

    en.wikipedia.org/wiki/Observations_and...

    The planet's period of retrograde motion is 20 days on either side of the inferior conjunction. In fact, through a telescope Venus at greatest elongation appears less than half full due to Schröter's effect first noticed in 1793 and shown in 1996 as due to its thick atmosphere. Venus in daylight at 5 p.m. in the southern hemisphere ...

  9. Solar System - Wikipedia

    en.wikipedia.org/wiki/Solar_System

    Thus, the Sun occupies 0.00001% (1 part in 10 7) of the volume of a sphere with a radius the size of Earth's orbit, whereas Earth's volume is roughly 1 millionth (10 −6) that of the Sun. Jupiter, the largest planet, is 5.2 AU from the Sun and has a radius of 71,000 km (0.00047 AU; 44,000 mi), whereas the most distant planet, Neptune, is 30 AU ...