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  2. Origin of the Moon - Wikipedia

    en.wikipedia.org/wiki/Origin_of_the_Moon

    The origin of the Moon is usually explained by a Mars-sized body striking the Earth, creating a debris ring that eventually collected into a single natural satellite, the Moon, but there are a number of variations on this giant-impact hypothesis, as well as alternative explanations, and research continues into how the Moon came to be formed. [1 ...

  3. Moon - Wikipedia

    en.wikipedia.org/wiki/Moon

    The Moon is Earth 's only natural satellite. It orbits at an average distance of 384,400 km (238,900 mi), about 30 times the diameter of Earth. Tidal forces between Earth and the Moon have synchronized the Moon's orbital period (lunar month) with its rotation period (lunar day) at 29.5 Earth days, causing the same side of the Moon to always ...

  4. Exploration of the Moon - Wikipedia

    en.wikipedia.org/wiki/Exploration_of_the_Moon

    The Cold War-inspired "space race" and "Moon race" between the Soviet Union and the United States of America accelerated with a focus on the Moon. This included many scientifically important firsts, such as the first photographs of the then-unseen far side of the Moon in 1959 by the Soviet Union, and culminated with the landing of the first humans on the Moon in 1969, widely seen around the ...

  5. Giant-impact hypothesis - Wikipedia

    en.wikipedia.org/wiki/Giant-impact_hypothesis

    The giant-impact hypothesis, sometimes called the Theia Impact, is an astrogeology hypothesis for the formation of the Moon first proposed in 1946 by Canadian geologist Reginald Daly. The hypothesis suggests that the Early Earth collided with a Mars -sized protoplanet of the same orbit approximately 4.5 billion years ago in the early Hadean eon ...

  6. Hollow Moon - Wikipedia

    en.wikipedia.org/wiki/Hollow_Moon

    The Hollow Moon and the closely related Spaceship Moon are pseudoscientific hypotheses that propose that Earth's Moon is either wholly hollow or otherwise contains a substantial interior space. No scientific evidence exists to support the idea; seismic observations and other data collected since spacecraft began to orbit or land on the Moon ...

  7. Star and crescent - Wikipedia

    en.wikipedia.org/wiki/Star_and_crescent

    Sealing depicting the Neo Sumerian King, Ibbi-Sin seated with a star or Dingir and crescent adjacent to him Depiction of the emblems of Ishtar (Venus), Sin (Moon), and Shamash (Sun) on a boundary stone of Meli-Shipak II (12th century BC) Venus, Sun and Moon on the Stele of Nabonidus (r. 556–539 BC) found at Harran (Şanlıurfa Museum) [10]

  8. 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 ...

  9. We will call it mini-moon. All about Earth temporary second ...

    www.aol.com/call-mini-moon-earth-temporary...

    There's a new moon on the horizon. The Earth will gain a second, mini-moon on Sept. 29, but it won't stick around too long, USA TODAY reports.The asteroid 2024 PT5 is expected to escape Earth's ...