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The Moon's heavily cratered far-side. 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.
Theia (/ ˈ θ iː ə /) is a hypothesized ancient planet in the early Solar System which, according to the giant-impact hypothesis, collided with the early Earth around 4.5 billion years ago, with some of the resulting ejected debris coalescing to form the 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 at 29.5 Earth days, causing the same side of the Moon to always face Earth.
🧪 Where Did the Moon’s Carbon Come From? Recently, scientists at several Japanese universities and the Japan Aerospace Exploration Agency found a surprise on the moon in the form of carbon ...
Space roundup: The moon's surface shows it's shrinking, the Summer Solstice is nearing and June begins with Venus behind the sun and four planets.
Artist's depiction of a collision between two planetary bodies. Such an impact between Earth and a Mars-sized object likely formed the Moon.. 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.
Here's something you might not have known about the moon landing, courtesy of one man who lived it: Buzz Aldrin himself. Aldrin and fellow astronaut Neil Armstrong only spent about two and a half ...
Like Apollo 8, Apollo 10 orbited the Moon but did not land. A list of sightings of Apollo 10 were reported in "Apollo 10 Optical Tracking" by Sky & Telescope magazine, July 1969, pp. 62–63. [17] During the Apollo 10 mission The Corralitos Observatory was linked with the CBS news network. Images of the spacecraft going to the Moon were ...