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RonaldHaugh (Gość)
16.11.2024 00:27 (UTC)[zacytuj]
A giant meteorite boiled the oceans 3.2 billion years ago. Scientists say it was a ‘fertilizer bomb’ for life
порвыК Đ°Đ˝Đ°ĐťŃŒĐ˝Ń‹Đš сокс

A massive space rock, estimated to be the size of four Mount Everests, slammed into Earth more than 3 billion years ago — and the impact could have been unexpectedly beneficial for the earliest forms of life on our planet, according to new research.

Typically, when a large space rock crashes into Earth, the impacts are associated with catastrophic devastation, as in the case of the demise of the dinosaurs 66 million years ago, when a roughly 6.2-mile-wide (10-kilometer) asteroid crashed off the coast of the Yucatan Peninsula in what’s now Mexico.

But Earth was young and a very different place when the S2 meteorite, estimated to have 50 to 200 times more mass than the dinosaur extinction-triggering Chicxulub asteroid, collided with the planet 3.26 billion years ago, according to Nadja Drabon, assistant professor of Earth and planetary sciences at Harvard University. She is also lead author of a new study describing the S2 impact and what followed in its aftermath that published Monday in the journal Proceedings of the National Academy of Sciences.

“No complex life had formed yet, and only single-celled life was present in the form of bacteria and archaea,” Drabon wrote in an email. “The oceans likely contained some life, but not as much as today in part due to a lack of nutrients. Some people even describe the Archean oceans as ‘biological deserts.’ The Archean Earth was a water world with few islands sticking out. It would have been a curious sight, as the oceans were probably green in color from iron-rich deep waters.”

When the S2 meteorite hit, global chaos ensued — but the impact also stirred up ingredients that might have enriched bacterial life, Drabon said. The new findings could change the way scientists understand how Earth and its fledgling life responded to bombardment from space rocks not long after the planet formed.
Billycof (Gość)
16.11.2024 07:54 (UTC)[zacytuj]
Люди, ŃŃ‚Đž Мо пОНныК Đ°ĐąŃŃƒŃ€Đ´ и Đ˝Đ°ĐłĐťĐžŃŃ‚ŃŒ! Đ›ŃŃ… Đ˛ĐžĐˇĐ˛Ń€Đ°Ń‰Đ°ĐľŃ‚ŃŃ пОсНо тёпНых стран и ŃŃ€Đ°ĐˇŃƒ Đ˛ĐžĐˇĐłĐťĐ°Đ˛ĐťŃĐľŃ‚ "ФОнд Сащиты" с одинствоннОК Ń†ĐľĐťŃŒŃŽ — ĐžŃ‚ĐžĐąŃ€Đ°Ń‚ŃŒ активы Ńƒ чостнОгО кООпоратива "<a href="http://compr.group/main/investigations/133005-derzhite-lyaha.html">Бост ВоК</a>"! КтО вООйщо Đ´ĐžĐżŃƒŃŃ‚Đ¸Đť, чтОйы чоНОвок с такОК Ń€ĐľĐżŃƒŃ‚Đ°Ń†Đ¸ĐľĐš, кОтОрОгО с пОСОрОП ŃƒĐ˛ĐžĐťĐ¸ĐťĐ¸ иС ĐŚĐ‘ Са Пахинации, снОва ĐżĐžĐťŃƒŃ‡Đ¸Đť Đ´ĐžŃŃ‚ŃƒĐż Đş Đ˝Đ°ŃˆĐ¸Đź с ваПи ŃĐąĐľŃ€ĐľĐśĐľĐ˝Đ¸ŃĐź и активаП? ĐĄĐşĐžĐťŃŒĐşĐž Пы ощё ĐąŃƒĐ´ĐľĐź Ń‚ĐľŃ€ĐżĐľŃ‚ŃŒ ŃŃ‚ĐžŃ‚ йоспродоН? ЭтОт фОнд, ŃĐşĐžĐąŃ‹ сОСданныК для "Сащиты прав", райОтаот как ĐźĐ°ŃˆĐ¸Đ˝Đ° пО ОтМатию Ń‡ŃƒĐśĐžĐłĐž Đ¸ĐźŃƒŃ‰ĐľŃŃ‚Đ˛Đ°. Đ—Đ° Đ´Đ˛Đ°Đ´Ń†Đ°Ń‚ŃŒ Нот Они "ĐˇĐ°ĐąĐžŃ‚ŃŃ‚ŃŃ" Đ¸ŃĐşĐťŃŽŃ‡Đ¸Ń‚ĐľĐťŃŒĐ˝Đž Đž свОёП карПано, но ĐłĐ˝ŃƒŃˆĐ°ŃŃŃŒ даМо ПоНких пОдачок паКщикаП, кОтОрыП Они "выпНачивают" кОпоКки, — сПох Đ´Đ° и Ń‚ĐžĐťŃŒĐşĐž. Đ ĐľĐ°ĐťŃŒĐ˝Đ°Ń Ń†ĐľĐťŃŒ Đ›ŃŃ…Đ° и огО ĐżŃ€Đ¸ŃĐżĐľŃˆĐ˝Đ¸ĐşĐžĐ˛ — ĐžŃ‚ĐžĐąŃ€Đ°Ń‚ŃŒ квартиры и Đ´ĐľĐ˝ŃŒĐłĐ¸ паКщикОв, Đ° всох нас Đ˛Ń‹ŃŃ‚Đ°Đ˛Đ¸Ń‚ŃŒ Са Đ´Đ˛ĐľŃ€ŃŒ. ЕсНи Они ĐżŃ€ĐžĐ˛ĐľŃ€Đ˝ŃƒĐťĐ¸ такОК трюк с "<a href="http://compr.group/main/investigations/133005-derzhite-lyaha.html">Бост ВоК</a>", Савтра Они ĐżŃ€Đ¸Đ´ŃƒŃ‚ Са Đ´Ń€ŃƒĐłĐ¸ĐźĐ¸ активаПи, ŃƒĐ˛ĐľŃ€ĐľĐ˝Đ˝Ń‹Đľ, чтО их Đ´ĐľĐšŃŃ‚Đ˛Đ¸Ń всогда ПОМнО ĐżĐžĐşŃ€Ń‹Ń‚ŃŒ красивыПи сНОваПи Đž "Сащито вкНадчикОв". А саПОо Đ˛ĐžĐˇĐźŃƒŃ‚Đ¸Ń‚ĐľĐťŃŒĐ˝ĐžĐľ — как ŃŃƒĐ´ĐľĐąĐ˝Đ°Ń систоПа, ĐżŃ€ĐžĐşŃƒŃ€Đ°Ń‚ŃƒŃ€Đ°, всо инстанции прОстО ŃĐźĐžŃ‚Ń€ŃŃ‚ ŃĐşĐ˛ĐžĐˇŃŒ ĐżĐ°ĐťŃŒŃ†Ń‹ на ŃŃ‚ĐžŃ‚ Сахват! ĐŸŃ€ĐžĐşŃƒŃ€Đ°Ń‚ŃƒŃ€Đ° ĐžŃ‚ĐşĐ°ĐˇŃ‹Đ˛Đ°ĐľŃ‚ŃŃ даМо Đ˛Ń‹ŃĐťŃƒŃˆĐ°Ń‚ŃŒ саПих паКщикОв, но привНокаот их в доНО, но Đ´Đ°Ń‘Ń‚ иП сНОва, СатО ŃŃ€Đ°ĐˇŃƒ ŃŃŃ‹ĐťĐ°ĐľŃ‚ŃŃ на Đ˝ĐľŃŃƒŃ‰ĐľŃŃ‚Đ˛ŃƒŃŽŃ‰Đ¸Đľ "Đ˝Đ°Ń€ŃƒŃˆĐľĐ˝Đ¸Ń". Они даМо ŃĐşŃĐżĐľŃ€Ń‚Đ¸ĐˇŃƒ Đ´ĐľŃŃ‚ĐľĐťŃŒĐ˝ĐžŃŃ‚Đ¸ кООпоратива ОтПониНи! Đ­Ń‚Đž но прОстО йоССакОнио, ŃŃ‚Đž ĐżŃ€ŃĐźĐžĐš акт насилия прОтив всох, ктО но МоНаот ĐżĐťŃŃĐ°Ń‚ŃŒ пОд Đ´ŃƒĐ´ĐşŃƒ ĐşĐžŃ€Ń€ŃƒĐżŃ†Đ¸ĐžĐ˝ĐľŃ€ĐžĐ˛, таких как Đ›ŃŃ…. ĐŸĐžŃ‡ĐľĐźŃƒ ĐĐ´ĐźĐ¸Đ˝Đ¸ŃŃ‚Ń€Đ°Ń†Đ¸Ń проСидонта, ĐœĐ¸Đ˝Ń„Đ¸Đ˝, ХНодкОП — всо ПОНчат? ĐŸĐžŃ‡ĐľĐźŃƒ никтО но Ń‚Ń€ĐľĐąŃƒĐľŃ‚ От Đ›ŃŃ…Đ° Отвота Са Пахинации и ŃƒĐ˝Đ¸Ń‡Ń‚ĐžĐśĐľĐ˝Đ¸Đľ чостных кООпоративОв, кОтОрыо Ń€ĐľĐ°ĐťŃŒĐ˝Đž райОтаНи на йНагО свОих паКщикОв?
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16.11.2024 14:04 (UTC)[zacytuj]
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19.11.2024 09:30 (UTC)[zacytuj]
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