Tag

Earlyearth

All articles tagged with #earlyearth

science1 year ago

Revisiting Earth's Early Days: Not as Harsh as Once Thought

Recent research suggests that the early Earth, during the Hadean Period, may have been more habitable than previously thought, with liquid water present despite its volcanic and chaotic environment. A study by researchers from the University of California explores the conditions that could have supported the origins of life, examining various atmospheric and geological processes. While the paper leaves some questions unanswered, it provides insights into how life might have begun on Earth.

science-and-environment2 years ago

"1.75-Billion-Year-Old Fossils Shed Light on the Dawn of Photosynthesis"

Scientists have discovered the oldest direct evidence of photosynthesis, dating back 1.75 billion years, in fossilized cyanobacteria found in Australia. These fossils contain thylakoid structures, which are essential for the photosynthetic process. This finding pushes back the known emergence of photosynthetic life and may help to explain the rise in atmospheric oxygen known as the Great Oxidation Event. The research, which utilized high-resolution microscopy techniques, could lead to a better understanding of early Earth ecosystems and the evolution of complex life forms.