Earth formed around 4.54 billion years ago, approximately one-third the age of the universe, by accretion from the solar nebula. [4][5][6] Volcanic outgassing probably created the primordial atmosphere and then the ocean, but the early atmosphere contained almost no oxygen.

Sep 30, 2014 · Explore key moments in Earth’s transformative history as continents drift and climate fluctuates over 4.6 billion years. Victoria Jaggard; Interactive by International Mapping;...

The age of Earth is estimated to be 4.54 ± 0.05 billion years (4.54 × 109 years ± 1%).[1][2][3][4] This age may represent the age of Earth 's accretion, or core formation, or of the material from which Earth formed. [2]

Over 4.5 billion years ago, our solar system formed from a giant molecular cloud that collapsed under its own tremendous gravity. The hot stew of hydrogen and helium gave birth to our sun and flung out a wide disc of gas and particles in the surrounding space.

From 4.6 to 4.0 billion years ago, the Hadean Eon is the first eon on Earth. Its key events are: HEAT SOURCE: Earth established a heat source with the sun. MAGNETIC FIELD: Convection currents produced a geodynamo. This was the first step for life to persist on Earth. MOON FORMATION: The formation of our moon was key to stabilizing our climate.

Earth formed approximately 4.54 billion years ago through accretion from the solar nebula, a disk-shaped mass of dust and gas remaining from the formation of the Sun, which also formed the rest of the Solar System.

Oct 17, 2024 · Earth formed about 4.5 billion years ago from the solar nebula. The origin of the Earth is a giant rotating cloud of gas and dust left over from the Sun's formation. As gravity pulled the particles together, they collided and merged, gradually building into …

Apr 8, 2022 · Approximately 4.6 billion years ago, our solar system was just a cloud of dust and gas known as a solar nebula.

Mar 19, 2025 · Earth 4.5 Billion Years Ago: A Molten Hellscape and Nascent World Four and a half billion years ago, Earth was almost unrecognizable compared to the vibrant blue planet we know today. Imagine a fiery orb, a chaotic mix of molten rock, swirling gases, and constant bombardment by space debris.

10 hours ago · Although Earth itself cohered into a planet around 4.5 billion years ago, most estimates suggest it took at least another 800 million years before the earliest lifeforms developed.