Since then, the combination of Earth's distance from the Sun, its physical properties and its geological history have allowed life to emerge, develop photosynthesis, and, later, evolve …

6 days ago · Astronomy Solar System Earth Scientists discover 1st evidence of 4.5-billion-year-old 'proto-Earth' buried deep within our planet News By Sharmila Kuthunur published October …

Earth came together (accreted) from the cloud of dust and gas known as the solar nebula nearly 4.6 billion years ago, the same time the Sun and the rest of the solar system formed. Gravity …

4 days ago · Earth - Accretion, Formation, Core: As the gas making up the solar nebula beyond the Sun cooled with time, mineral grains are thought to have condensed and aggregated to …

4 days ago · Hidden deep in ancient rocks, scientists have found the surviving traces of Earth’s first form—unchanged for 4.5 billion years.

6 days ago · Earth has a long, 4.5 billion history full of momentous twists and turns. Multiple prominent events played leading roles in Earth's story. One of them is the catastrophic impact …

Oct 14, 2025 · Billions of years ago, the early solar system was a swirling disk of gas and dust that eventually clumped and accumulated to form the earliest meteorites, which in turn merged …

Jul 10, 2025 · Earth started out as a ball of liquid fire, its newborn surface closer to a lava lamp than the calm continents we know today. Those incandescent beginnings happened 4.5 billion …

Oct 19, 2023 · Our planet began as part of a cloud of dust and gas. It has evolved into our home, which has an abundance of rocky landscapes, an atmosphere that supports life, and oceans …

Early Earth atmospheres (> 3 billion years ago) did not contain the 21% oxygen content that we have today. When life on Earth originated (~ 3.5 billion years ago) the first prokaryotic cells …