Earth’s ancient ‘greenhouse’ conditions were hotter than thought
2024年9月19日 · A timeline of 485 million years of Earth’s surface temperatures shows ancient greenhouse conditions were hotter than scientists thought.
Earth’s oldest known earthquake was probably triggered by plate …
2024年3月28日 · Earth Ancient zircons may record the dawn of plate tectonics By Nikk Ogasa May 2, 2022. Earth 50 years ago, scientists thought they had found Earth’s oldest rocks By ...
Meteorites suggest ancient Earth once had an atmosphere rich in …
2020年1月29日 · Earth’s atmosphere 2.7 billion years ago may have been more than two-thirds carbon dioxide. That finding comes from a new study that simulates how the ancient atmosphere may have interacted with ...
Young and Restless: Ancient Earth shows moving crust - Science …
2007年3月21日 · Over Earth’s history, most of the original crust has recycled by sinking into the planet’s hot interior, melting, and heading back toward the surface. However, a few pieces of the ancient ...
Methane didn’t warm ancient Earth, new simulations suggest
2016年9月26日 · Methane wasn’t the cozy blanket that kept Earth warm hundreds of millions of years ago when the sun was dim, new research suggests. By simulating the ancient environment, researchers found that ...
Ancient trees’ gnarled, twisted shapes provide irreplaceable habitats
2024年2月23日 · Earth Ancient rocks reveal when rivers began pouring nutrients into the sea By Lucas Van Wyk Joel January 31, 2025. Space Life’s ingredients have been found in samples from asteroid Bennu By ...
Roughly 90 million years ago, a rainforest grew in Antarctica
2020年4月1日 · Earth Ancient rocks reveal when rivers began pouring nutrients into the sea By Lucas Van Wyk Joel January 31, 2025. Space Life’s ingredients have been found in samples from asteroid Bennu By ...
Bacteria fossils hold the oldest evidence of photosynthesis …
2024年1月3日 · Ancient tiny fossils from Australia may carry evidence of great power: the ability to make oxygen through photosynthesis. The fossilized bacteria, dating from 1.73 billion to 1.78 billion years ...
NASA's Perseverance finds its first possible hint of ancient Mars life
2024年7月25日 · On Earth, rings with similar texture and chemistry are associated with ancient microbial life. The chemical reactions that create the rings can be an energy source for microbes.
Ancient air bubbles could revise history of Earth’s oxygen
2016年7月25日 · Scientists have previously measured ancient Earth’s oxygen supply by looking for the fingerprints of chemical reactions that require oxygen to take place (SN: 11/29/14, p. 14). Such work has ...