Can scientists ever figure out if life began on Earth or in the stars?
Three competing theories for the origin of life's building blocks may fit together
The most likely explanation is a combination of the first and third theories
Fossil evidence of photosynthesis gets a billion years older
Photosynthesis is a pivotal event in Earth's history, allowing life to harvest energy from light and grow in complexity.
New fossils push the evidence of photosynthesis back 1.7 billion years, providing clearer insight into its origins.
Otherworldly mini-Yellowstone found in the deep sea
Scientists have discovered a submerged mini Yellowstone called Sendero del Cangrejo in Ecuadorian waters, which contains a chain of hydrothermal vents that may offer clues to the origin of life on Earth and other worlds.
The vent site was discovered with the help of squat lobsters and is named 'Trail of the Crabs' in their honor.