CNNE 770515 - el asteroide letal que no pudo con las bacterias
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El asteroide que arrasó con casi toda la vida en la Tierra no pudo con las bacterias
Panorama Mundial
17:21 ET (22:21 GMT) 4 de febrero de 2020
El asteroide Chicxulub causó la extinción del 76% de las especies del planeta Tierra, incluyendo los dinosaurios, hace unos 66 millones de años. Como el polvo enturbió la atmósfera y bloqueó el Sol, la fotosíntesis disminuyó y el fitoplancton de los océanos dejó de producir oxígeno. Las condiciones eran casi imposibles para que la vida prosperara. En los días y décadas posteriores al impacto solo unos organismos reaparecieron en el cráter.
00:34 - Fuente: CNN
MÁS DE PANORAMA MUNDIAL 16 videos
CNNE 770515 - el asteroide letal que no pudo con las bacterias
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El asteroide que arrasó con casi toda la vida en la Tierra no pudo con las bacterias
00:34
En curso
- Fuente: CNN
WEST PALM BEACH, FLORIDA - NOVEMBER 06: Republican presidential nominee, former U.S. President Donald Trump arrives to speak during an election night event at the Palm Beach Convention Center on November 06, 2024 in West Palm Beach, Florida. Americans cast their ballots today in the presidential race between Republican nominee former President Donald Trump and Vice President Kamala Harris, as well as multiple state elections that will determine the balance of power in Congress. (Photo by Chip Somodevilla/Getty Images)
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Locals and volunteers remove mudy water, on November 1, 2024, after a flooding devastated the town of Paiporta, in the region of Valencia, eastern Spain. The death toll from Spain's worst floods in a generation has climbed to 205, rescuers said today, with the number expected to rise as more people are believed missing. The agency coordinating emergency services in the eastern Valencia region said 202 people had been confirmed dead there, with officials in Castilla-La Mancha and Andalusia previously announcing a combined three deaths in their regions. (Photo by JOSE JORDAN / AFP) (Photo by JOSE JORDAN/AFP via Getty Images)
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En curso
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TOPSHOT - Venezuela's President Nicolas Maduro (L) and Brazil's President Luiz Inacio Lula da Silva (R) greet each other after a joint press conference at the Planalto Palace in Brasilia on May 29, 2023. Brazilian President Luiz Inacio Lula da Silva met Monday with his Venezuelan counterpart Nicolas Maduro, renewing a relationship severed under far-right ex-president Jair Bolsonaro. Lula invited Maduro to the Brazilian capital along with the rest of South America's leaders for a "retreat" Tuesday aimed at rebooting regional cooperation. It will be the first regional summit in nearly a decade. (Photo by EVARISTO SA / AFP) (Photo by EVARISTO SA/AFP via Getty Images)
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UTIEL, SPAIN - OCTOBER 30: People check the damage of their shop after flash floods hit the region on October 30, 2024 in the Sedaví area of Valencia, Spain. Spanish authorities said on Wednesday that at least 62 people had died in the Valencia region overnight after flash-flooding followed heavy rain. Spain's meteorological agency had issued its highest alert for the region due to extreme rainfall. (Photo by David Ramos/Getty Images)
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UTIEL, SPAIN - OCTOBER 30: A man walks through a debris-covered street after flash floods hit the region on October 30, 2024 in the Sedaví area of Valencia, Spain. Spanish authorities said on Wednesday that at least 62 people had died in the Valencia region overnight after flash-flooding followed heavy rain. Spain's meteorological agency had issued its highest alert for the region due to extreme rainfall. (Photo by David Ramos/Getty Images)
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A UN vehicle enters the UNRWA (United Nations Relief and Works Agency) center at the Nuseirat camp for Palestinian refugees in the central Gaza Strip on October 29, 2024. Israel faced a mounting international backlash on October 29, after its parliament approved a bill banning the main UN aid agency for the devastated Gaza Strip. (Photo by Eyad BABA / AFP) (Photo by EYAD BABA/AFP via Getty Images)
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Merck
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RAHWAY, NJ - NOVEMBER 29: A man walks near the main entrance of a Merck plant November 29, 2005 in Rahway, New Jersey. U.S. pharmaceutical giant Merck, announced plans to cut some 7,000 jobs, or 11 percent of its global workforce, by the end of 2008. (Photo by Marko Georgiev/Getty Images)
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Former US President and Republican presidential candidate Donald Trump speaks during a campaign rally at the McCamish Pavilion in Atlanta, Georgia, October 28, 2024. (Photo by CHRISTIAN MONTERROSA / AFP) (Photo by CHRISTIAN MONTERROSA/AFP via Getty Images)
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En curso
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