How was the earth formed nasa?

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Oral Cartwright asked a question: How was the earth formed nasa?
Asked By: Oral Cartwright
Date created: Mon, Mar 29, 2021 7:40 PM
Date updated: Thu, Jun 23, 2022 12:35 AM

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Top best answers to the question «How was the earth formed nasa»

When the solar system settled into its current layout about 4.5 billion years ago, Earth formed when gravity pulled swirling gas and dust in to become the third planet from the Sun. Like its fellow terrestrial planets, Earth has a central core, a rocky mantle, and a solid crust.

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When the solar system settled into its current layout about 4.5 billion years ago, Earth formed when gravity pulled swirling gas and dust in to become the third planet from the Sun. Like its fellow terrestrial planets, Earth has a central core, a rocky mantle and a solid crust.

Earth is our home planet. Scientists think Earth formed billions of years ago. Four planets in the solar system are bigger than Earth. Three planets are smaller. It is the third-closest planet to the sun. Only Mercury and Venus are closer. Earth has been called the "Goldilocks planet."

Earth’s atmosphere today bears little resemblance to the atmosphere of the early Earth, in which life developed; it has been nearly reconstituted by the bacteria, vegetation, and other life forms that have acted upon it over the eons.

Fifty years ago, however the agency that pushed the frontiers of aeronautics, took us to the moon, flew the space shuttle, built the International Space Station and revealed the secrets of the cosmos, was in its birth throes, and fundamental decisions were being made that profoundly shaped all that was to come.

New research funded by NLSI theorizes that our early Earth and moon were perhaps created in a different manner than has previously been believed. Image credit: NASA New research, funded by the NASA Lunar Science Institute (NLSI), hypothesizes that our early Earth and moon were both created together in a giant collision of two planetary bodies that were each five times the size of Mars.

How did we get here? In order to understand how the universe has changed from its initial simple state following the Big Bang (only cooling elementary particles like protons and electrons) into the magnificent universe we see as we look at the night sky, we must understand how stars, galaxies and planets are formed.

Our story starts about 4.6 billion years ago, with a wispy cloud of stellar dust. This cloud was part of a bigger cloud called a nebula. At some point, the cloud collapsed—possibly because the shockwave of a nearby exploding star caused it to compress. When it collapsed, it fell in on itself, creating a disk of material surrounding it.

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