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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.
The lunar spacecraft is expected to leave Earth’s orbit in about one week, embarking on a four-day journey to the moon. Blue Ghost will orbit our celestial neighbor for 16 days before attempting ...
The Moon differs from most regular satellites of other planets in that its orbit is closer to the ecliptic plane instead of its primary's (in this case, Earth's) equatorial plane. The Moon's orbital plane is inclined by about 5.1° with respect to the ecliptic plane, whereas Earth's equatorial plane is tilted by about 23.4° with respect to the ...
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.
A region of the moon at the center of a new international space race is prone to “moonquakes,” potentially posing a threat to future human settlers, a new study says. Earth’s moon is shrinking.
An asteroid that orbited near Earth for a few months as a mini-moon may be a chunk of the moon that was blasted off by an impact thousands of years ago. Earth’s recent ‘mini-moon’ may be an ...
The instantaneous Earth–Moon distance, or distance to the Moon, is the distance from the center of Earth to the center of the Moon. In contrast, the Lunar distance ( LD or Δ ⊕ L {\textstyle \Delta _{\oplus L}} ), or Earth–Moon characteristic distance , is a unit of measure in astronomy .
Earth's new mini-moon will orbit Earth for only 2 months. During the object's visit, Teddy Kareta, an astronomer at Lowell Observatory in Arizona, was among those who sought to catch a glimpse of ...