astrobiology
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Icy Origins: How Cold Water Could Have Sparked Life
Geologists refer to the period when Earth was covered in ice as “Snowball Earth.” During this time, thick layers of ice and glaciers extended all the way to equator. Although this ice age might seem harsh for life, it’s surprising that the first multicellular animals appeared during a milder period between ice ages. This discovery raises intriguing questions about how…
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Shocking! New Exoplanet Stinks Like Uranus!
Uranus, fittingly, smells like a giant fart. The planet is full of hydrogen sulfide, the gas that gives rotten eggs their distinct smell. Now, we’ve found the same stench elsewhere in the Milky Way. The James Webb Space Telescope (JWST) identified hydrogen sulfide on the scorching Jupiter-sized exoplanet HD-189733b. “We had projected hydrogen sulfide as a major chemical, but we…
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