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New study reveals the icy, cold climate of Mars’ past, with implications for life

If life exists on alien worlds, scientists expect that the worlds in question would have certain basic properties. There would be carbon, an element essential to the creation of organic molecules. The world will include enough water for the life to flourish, and the environment will stay within an acceptable range of temperatures (-15º C to 115º C)....

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Scientists detect rotten egg smell from exoplanet where it rains molten glass

Scientists have discovered thousands of exoplanets in other solar systems and some of them are especially weird compared to our stellar neighborhood. For example, HD 189733 b, a planet 65 light years from Earth in the constellation Vulpecula, is larger than Jupiter, the largest planet in Earth’s solar system. But it also rains molten glass at extremely hot temperatures, with the scorching shards flying sideways due to winds that reach speeds of up to 5,000 mph (8,046 kph)....

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Heat-related deaths in Maricopa County have nearly doubled compared to last year, report finds

Summer isn’t close to over yet, but heat-related deaths in Phoenix, Arizona have doubled from their rate over the same period last year, according to a new report by the Maricopa County medical examiner. As burning fossil fuels worsens climate change, the largest metropolises in the American Southwest are predicted to keep suffering from record-breaking heat waves....

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Gold mining could wipe out this rare desert fish. Conservationists are trying to save it

The Oasis Valley speckled dace is a distinctive fish, with an elongated body covered in black freckles over a gold or silver-hued surface. Unfortunately for this rare species of dace, they only reside in a single spot on the planet: The springs which feed Nevada’s Amargosa River. Now the Oasis Valley speckled dace is at risk of extinction by more than half a dozen gold mines in the same area, according to a new petition filed by the Center for Biological Diversity....

Originally posted on salon.com