Every year, the Moon travels noticeably and irreversibly further away from Earth. This movement is almost imperceptible-it is only a fraction of an inch and a half. There is no way to halt this gradual decline or turn back the hands of time.

No matter what happens to gravity's unstoppable powers, they will continue pulling the Moon toward the planet. The Atlantic wrote that Earth and the Moon have been growing further apart for millions of years.

Moon Slowly Drifting Away From Earth

In 1969, NASA's Apollo missions installed reflective surfaces on the Moon. These have demonstrated the Moon's present distance from Earth, which is 3.8 centimeters every year, Space.com wrote.

The Earth and Moon collided around 1.5 billion years ago if we extrapolate the Moon's current pace of recession backward in time. The Moon, however, was created about 4.5 billion years ago. Therefore the present recession rate is a lousy indicator of the past.

Some gorges in western Australia's stunning Karijini National Park cut through 2.5 billion years old strata stacked rhythmically. These sediments are banded iron formations, which are layers of minerals with a high iron and silica content that was formerly extensively distributed on the ocean bottom and are now present in the oldest portions of the Earth's crust.

NASA astronaut Karen Nyberg watches Earth from the Cupola Observational Module of the International Space Station.
(Photo: NASA)
NASA astronaut Karen Nyberg watches Earth from the Cupola Observational Module of the International Space Station. A new study suggests several effects on the astronauts' well-being that are impacted due to long dwellings in isolated and controlled settings.

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A scientific journal wrote that Australian geoscientist A.F. Trendall questioned the origin of the many cyclical, repetitive patterns that may be seen in these old rock strata during the 1970s. Using the term "Milankovitch cycles," he proposed a theory that the patterns could be related to prior climate changes.

The climatic precession cycle, one of the Milankovitch cycles, has a direct relationship with the distance between the Earth and the Moon. This cycle is the consequence of the precessional motion (wobble) or shifting orientation of the Earth's spin axis throughout time. Although this cycle presently lasts about 21,000 years, it used to stay less time when the Moon was closer to Earth.

The distance between the Earth and the Moon at the time the sediments were formed may thus be calculated if we can first identify Milankovitch cycles in ancient deposits, then place a sign of the Earth's wobble, and last determine its period.

Gravity's Attraction

Science ABC said the Moon's gravitational attraction causes certain portions of the Earth to be drawn closer to it than others, resulting in the tidal bulge in our planet's seas. Due to many physical factors, the Moon is pushed into a higher orbit around Earth by this bulge since the Earth rotates considerably more quickly than the Moon.

The Moon is frighteningly simple to take for granted. The sun is no different in this regard. However, life on Earth would be very different from what it is now, and it wouldn't be a lovely experience for us if it weren't for their permanent presence in our skies!

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