Earth's 19-hour days and the origin of water.
TL;DR Summary
Earth's day length may have stalled at about 19 hours for about a billion years, according to a study published in Nature Geoscience. This period of stable day length intriguingly coincides with two significant rises in atmospheric oxygen, suggesting Earth's rotation may have affected its atmospheric composition. The study supports the idea that Earth's rise to modern oxygen levels had to wait for longer days for photosynthetic bacteria to generate more oxygen each day.
Topics:science#atmospheric-composition#day-length#earth-science#earths-rotation#milankovitch-cycles#oxygen-levels
- Earth's “Boring Billion” – Study Unveils 19-Hour Days in Earth's Deep Past SciTechDaily
- For a billion years, Earth may have had 19-hour days. Here's why. Livescience.com
- How water came to Earth? Scientists may have found answer Geo News
- When the Earth Had a 19-Hour Day » Explorersweb ExplorersWeb
- Water on Earth did not form on its own. It was sucked from space India Today
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