Jul 9, 2025 · Strange cone-shaped rocks led scientists to the hidden remains of one of Earth’s oldest asteroid impacts. It could help us find fossil life on Mars.

Sep 19, 2024 · A timeline of 485 million years of Earth’s surface temperatures shows ancient greenhouse conditions were hotter than scientists thought.

Jun 26, 2025 · Earth’s oldest rocks may be at least 4.16 billion years old An unconventional dating method aims to settle a dispute over the age of some Canadian rocks

Jan 24, 2014 · Tiny tufts, rolls and crinkles in 3.5-billion-year-old rocks add to a growing body of evidence suggesting that cellular life got a relatively quick start on Earth.

Jan 31, 2025 · Rivers began pumping weathered material into the sea about a billion years after Earth formed, suggesting continents may have gotten an early start.

Jan 3, 2024 · 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 ...

Jun 3, 2024 · Oxygen ratios in ancient zircon crystals suggest that the planet’s water cycle got started hundreds of millions of years earlier than thought.

May 7, 2025 · Ancient oxygen-making microbes may have oxygenated large swaths of Earth’s seafloor hundreds of millions of years before the element filled the atmosphere.

Feb 25, 2025 · Mars may once have held enough water to fill oceans and form coastlines. The planet’s red dust contains water and likely formed in cold conditions.

Jul 25, 2024 · The NASA Mars rover examined a rock containing organic compounds and “leopard spots” that, on Earth, are associated with microbial life.