NASA Research Shows Early Life Relied on Rare Metal
NASA-funded research reveals that early life on Earth used the rare metal molybdenum as far back as 3.3 to 3.7 billion years ago, despite its scarcity in ancient oceans. The study shows molybdenum was used in essential enzymes for critical biochemical reactions long before the Great Oxidation Event. This finding challenges previous assumptions that life relied on other metals like tungsten before switching to molybdenum as it became more abundant.
- ▪Life on Earth used molybdenum between 3.3 and 3.7 billion years ago, according to molecular dating in the study.
- ▪Molybdenum is essential for enzymes involved in carbon, nitrogen, and sulfur reactions in cells.
- ▪The study contradicts the 'tungsten first, molybdenum later' hypothesis, showing both metals were used early in life's history.
- ▪Hydrothermal vents may have provided localized sources of molybdenum for early microbes despite low oceanic concentrations.
- ▪The research was published in Nature Communications and led by Betül Kaçar of the University of Wisconsin-Madison.
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5 min readNASA Research Shows Early Life Relied on Rare MetalAaron GronstalMay 05, 2026 Article Contents Molybdenum through history Accessing molybdenum Bio-essential elements, search for life in universe Timeline of Earth’s history in billions of years. The new study indicates that life used molybdenum as far back as 3.3 to 3.7 billion years ago, long before levels of molybdenum in the oceans increased to modern levels. Other events in Earth’s history are marked for context.NASA NASA-funded scientists have discovered that life on Earth over 3 billion years ago relied on the metal molybdenum, which was incredibly scarce in the environment at the time.
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