HomeSpace & AstronomyEarth's crust grows faster as Earth crosses the Milky Way's spiral...

Earth’s crust grows faster as Earth crosses the Milky Way’s spiral arms

The earth orbits around the sun, and the sun also orbits around the core of the galaxy with the planets, including earth.

As Earth crosses the Milky Way’s spiral arms, more energetic comets will hit Earth and cause the crust to grow faster, a new study suggests.

We usually think of Earth’s internal processes as causing changes to the planet, but scientists say we can think on a larger scale and see how Earth’s different positions as it travels through the Milky Way affect Earth itself.

The team of geologist Chris Kirkland of Curtin University in Australia examined the zircon crystals of the two oldest continents on Earth: the North American Craton and the Pilbara Craton, and measured the decay of uranium in the crystals to establish a craton formation timetable, with a time span of about From 2.8 to 3.8 billion years ago, reanalysis of hafnium isotopes to determine the time of magma influx associated with crustal formation revealed a pattern of crustal thickening corresponding to a galactic year over a long period of time.

More specifically, the researchers found that the rate of crustal production is related to the repeated movement of the solar system in and out of the spiral arms of the Milky Way.

The sun orbits the galactic center at about 240 km/s, while the galactic arms rotate at about 210 km/s, and models suggest that the solar system enters the galactic arms about every 200 million years,

At this time, the icy star in the Oort cloud will interact with the dense gas cloud in the spiral arm, pushing the icy comet into the inner solar system and increasing the probability of hitting the earth.

The team hopes the discovery will further explain how forces outside the solar system shape Earth,

While proving these things is very difficult, studying geological processes beyond Earth and our solar system, and the factors that might drive them, may give us solace in more than just being in isolation.

SOURCESpace.com
Mehmet S. Kaya
Mehmet S. Kayahttps://teknonel.com
Mehmet is one of the administrator of Teknonel. As a software developer, he loves to share his knowledge in related topics. He is highly familiar with the editorial process from the inception of an article idea, through the iterative process, publishing, and performance analysis as well as product reviews.

Follow us on Social Media!

12FansLike
15,848FollowersFollow
13FollowersFollow
676SubscribersSubscribe

Related Articles

Gravitational waves from alien megaships can be detected across the Milky Way

Whether the earth is the only intelligent species in the universe has always been an unresolved question. After all, human search technology is limited...

2 Deep Ocean exoplanets are discovered by Hubble and Spitzer

The solar system contains planets of various characteristics, but lacks water planets that are almost completely covered by deep oceans. Recently, astronomers analyzed data from...

New exoplanet surprises astronomers: Twice the Density of Earth

Scientists discover Jupiter-sized young exoplanet HD-114082b. The analysis results show that it is not like the two common gas giant planets. Simply put, it...

AT 2022cmc black hole jet event is equivalent to a trillion suns

Exploding flashes of light in the universe from time to time is nothing new, but when a light comes from 8.5 billion light-years away...

Explore More Articles

The world's largest electric boat with a capacity of 2,100 people

The world’s largest electric boat with a capacity of 2,100 people

0
Electric vehicles can help reduce carbon emissions, so if ferries that are larger and use more fuel are electrified, can they further reduce carbon...
Best 300 - 350 Watt Power Supply Units-min

4 Best 300 – 350 Watt Power Supply Units

0
The power supply provides electrical current to all of the computer components. The power supply unit must have sufficient power to supply the various...