{"id":83997,"date":"2024-06-29T12:42:17","date_gmt":"2024-06-29T12:42:17","guid":{"rendered":"https:\/\/news.talkwithrattan.com\/index.php\/2024\/06\/29\/readers-discuss-dark-energy-otzis-tattoos-and-sneaky-plant-invasions\/"},"modified":"2024-06-29T12:42:17","modified_gmt":"2024-06-29T12:42:17","slug":"readers-discuss-dark-energy-otzis-tattoos-and-sneaky-plant-invasions","status":"publish","type":"post","link":"https:\/\/news.talkwithrattan.com\/index.php\/2024\/06\/29\/readers-discuss-dark-energy-otzis-tattoos-and-sneaky-plant-invasions\/","title":{"rendered":"Readers discuss dark energy, \u00d6tzi’s tattoos and sneaky plant invasions"},"content":{"rendered":"
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Secrets of space<\/h4>\n\n\n\n

New data hint that dark energy\u2019s density, commonly thought to remain constant, might vary over time, Emily Conover<\/strong> reported in \u201c3-D map hints at dark energy\u2019s secrets<\/a>\u201d (<\/em>SN: 5\/4\/24 & 5\/18\/24, p. 6).<\/em><\/p>\n\n\n\n

In the standard picture of the cosmos, the amount of dark energy is increasing as the universe expands. Reader Mark Granville<\/strong> wondered where new dark energy comes from.<\/p>\n\n\n\n

Dark energy\u2019s source is an enduring mystery. Quantum fluctuations in empty space, in which particles pop into existence for extremely brief moments, could be one explanation, Conover<\/strong> says. But these fluctuations yield even more questions. Some calculations predict that much more dark energy exists than researchers are observing in the universe, by 120 orders of magnitude, Conover<\/strong> says. Scientists still don\u2019t know how to explain that discrepancy.<\/p>\n\n\n