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More massive species-ending asteroids may have hit our planet

3 years 6 months ago
In a new study, scientists used high-resolution satellite data to measure the size of four known impact craters on Earth. They found that massive asteroids like the one that sent dinosaurs into extinction may strike Earth more often than previously thought.

Covid-sniffing dogs may help detect infections in schools

3 years 6 months ago
A new study looked at the Covid-19 dog screening pilot program that was launched in some California K-12 public schools. CNN's Jacqueline Howard reports on how the dogs can detect the coronavirus and may be trained to sniff out other diseases.

Biden's age a concern among U.S. voters

3 years 6 months ago
As President Biden prepares for his 2024 presidential run, voters share concerns about his age and ability to face off against Republican front-runner, Donald Trump. CNN Senior Political Analyst Ron Brownstein joins us to discuss the challenges candidates face as they head into next year's election.

Thousands flee Sudan as country plunges deeper into chaos and violence

3 years 6 months ago
CNN's Lynda Kinkade reports on the latest from Sudan, as the rush to flee the country grows more desperate amid ongoing clashes between rival military factions. Then, CNN Senior Editor for Africa Stephanie Busari reports on fears among Sudanese citizens that their plight will be forgotten as more foreigners leave the country.
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2 years 5 months ago
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