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Vikings were in the Americas exactly 1,000 years ago

How a nuclear bomb could save Earth from a stealthy asteroid

NASA’s Lucy launches on 12-year mission to Jupiter’s Trojan asteroids

Past pandemics remind us COVID will be an era, not a crisis that fades

Protected too late: US officials report more than 20 extinctions

Nobel Prize in Chemistry awarded to scientists for tool that builds better catalysts

Nobel Prize in Physics awarded for study of humanity’s role in changing climate

Nobel Prize in Physics awarded for study of humanity’s role in changing climate

Nobel Prize awarded to scientists for research about temperature and touch

The rock that ended the dinosaurs was much more than a dino killer

US is getting a crash course in scientific uncertainty

Caught in the crossfire over COVID’s origins

Don’t call them ‘shark attacks,’ scientists say

A coronavirus epidemic hit 20,000 years ago, new study finds

Cats are better than dogs (at catching the coronavirus)

Zoo animals are getting experimental coronavirus vaccines

The Delta variant: What scientists know

Scientist finds early virus sequences that had been mysteriously deleted

Here’s the Arctic station that keeps satellites connected

New dinosaur species is Australia’s largest, researchers say