Moon
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The Moon is the only natural satellite of Earth. It orbits around Earth at an average distance of 384,399 kilometers, a distance roughly 30 times the width of Earth. It completes an orbit in relation
The near side of the Moon with the lunar north pole at the top
Size comparison of the main moons of the Solar System with Earth to scale. Nineteen moons are large enough to be round, several having subsurface oceans and one, Titan, having a considerable atmosphere.
Surveyor 7 observes levitating dust, a phenomenon named Lunar horizon glow can be seen
Astronaut Charles Duke working on the Moon with his suit covered in lunar dust. Lunar dust is highly abrasive and can cause damage to human lungs and nervous and cardiovascular systems.
Theia (hypothetical planet)
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Theia is a hypothetical ancient planet in the early Solar System which, according to the giant-impact hypothesis, collided with the proto-Earth around 4.50 billion years ago, with some of the resultin
Moon
…The origin of the Moon is not clear, although it is thought to have been formed out of material from Earth that was ejected by a giant impact of a Mars-sized body 4.51 billion years ago, not long after Earth's formation. From a distance, the day and night phases of the lunar day are visible as the lunar phases…
Artist's depiction of a collision between two planetary bodies, similar to the hypothesized collision between Theia and the proto-Earth.