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Billions of years ago, Earth’s atmosphere might’ve been churning out the sulfur-based molecules essential for life, then delivering them to the surface in rainfall. A team at CU Boulder used lab simulations…
Atlas from the fourteenth century, attributed to Abraham Cresques. Via Wikimedia Commons. Created as a gift for King Charles V of France in 1380, the atlas offers a detailed view of the…
The European Space Agency’s Mars Express orbiter captured this view of Mars’ south polar ice cap Feb. 25, 2015. Three years later, the spacecraft detected a signal from the area to the…
