A giant meteorite boiled the oceans 3.2 billion years ago. Scientists say it was a ‘fertilizer bomb’ for life
порно групповое жесток
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.
Your comment was posted successfully! Thank you!
A giant meteorite boiled the oceans 3.2 billion years ago. Scientists say it was a ‘fertilizer bomb’ for life
порно групповое жесток
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.
RonaldPah on
Andyvoife on
посетить веб-сайт
цена лазерной коррекции зрения
RobertoDiack on
I’m extremely impressed with your writing skills and also with the layout on your weblog. Is this a paid theme or did you customize it yourself? Either way keep up the excellent quality writing, it is rare to see a great blog like this one nowadays.
canadian pharmaceuticals online safe on
reference afdas us
JamesFlume on
Best Online Casinos in South Africa 2024
Romeomus on
Читать далее
оборудование для пеноблоков купить
Dannycof on
Представляем вам компанию ООО “УЗТМ”, заслуживающего доверия партнёра в области распространения реактивно стойких технических материалов, включая молибден, тантал, вольфрам, ванадий, ниобий, рений, цирконий, гафний. Наша фирма владеет обширным ассортиментом металлических изделий, отличающейся высочайшим качеством. Мы осуществляем продажу изделий любых объёмов и обеспечиваем индивидуальный подход к каждому заказчику.
Опираясь на годы опыта, ООО “УЗТМ” представляет собой механизм, построенный на решение задач самого требовательного клиента в отрасли. Ассортимент наших продуктов заинтересует как крупных производителей, так и малый и средний бизнес.
Свяжитесь с нами через наш сайт https://uztm-ural.ru для ознакомления с дополнительной информации и оформления заказа. Мы готовы предложить оптимальные решения для ваших предприятий и производственных процессов.
Наши товары:
Вольфрамовые электроды РР’Р-1 D 6.0 -200 РјРј (1РєРі)
Вольфрамовая проволока ВА D 1,5 мм
Рлектроды-трубки РёР· вольфрама D 10 РјРј
Вольфрамовые электроды РР’Р§ D 1.0 -75 (1РєРі)
Вольфрамовый порошок W 4,0 (ТУ 48-19-417-86)
SheilaZew on
Good day I am so grateful I found your blog page, I really found you by accident, while I was browsing on Askjeeve for something else, Nonetheless I am here now and would just like to say thanks a lot for a marvelous post and a all round interesting blog (I also love the theme/design), I don’t have time to browse it all at the moment but I have saved it and also added in your RSS feeds, so when I have time I will be back to read a lot more, Please do keep up the superb work.
canadian pharmaceuticals online on
нажмите здесь нефтяной растворитель нефрас с2 80 120
Samuelfew on
Пхукет недвижимость купить – https://kj.media/promo/kupit-dom-v-tajlande/
купить недвижимость в таиланде on
дженерик виагра Мурманск
купить дженерик виагра в Мурманске
https://generic51.ru/ on