
An ancient Earth impact could help in the search for Martian life
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.
Earth’s oldest rocks may be at least 4.16 billion years old
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
Ancient rocks reveal when rivers began pouring nutrients into the …
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.
Earth’s ancient ‘greenhouse’ conditions were hotter than thought
Sep 19, 2024 · A timeline of 485 million years of Earth’s surface temperatures shows ancient greenhouse conditions were hotter than scientists thought.
Meteorites suggest ancient Earth once had an atmosphere rich in …
Jan 29, 2020 · Simulations of reactions between 2.7-billion-year-old micrometeorites and atmospheric gases hint Archean Earth’s atmosphere had high levels of CO2.
Humans have pondered aliens since medieval times - Science News
Apr 20, 2016 · Other worlds, illogical From ancient times Earth’s place was widely regarded to be the center of everything.
Indigenous people may have made the Amazon’s ‘dark earth’ on …
Jan 5, 2023 · Modern Amazonians make nutrient-rich soil from ash, food scraps and burns. The soil strongly resembles ancient dark soils found in the region.
NASA's Perseverance finds its first possible hint of ancient Mars life
Jul 25, 2024 · The NASA Mars rover examined a rock containing organic compounds and “leopard spots” that, on Earth, are associated with microbial life.
NASA’s Perseverance rover found a new potential setting for …
Dec 12, 2024 · A new potential setting for Martian life Ancient rocks weren’t all that Perseverance found in the Pico Turquino Hills.
Life’s early traces - Science News
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.