In 2020, Oxford-based philosopher Toby Ord published a book called The Precipice about the risk of human extinction. He put the chances of “existential catastrophe” for our species during the next century at one in six. It’s quite a specific number and an alarming one. The claim drew headlines at the time and has been ...
After a journey of billions of kilometers, NASA’s OSIRIS-REx mission has culminated in a small black capsule blazing through the sky before touching down in the Utah desert. Inside is likely to be the largest-ever sample of dust and rock returned from an asteroid. Extracted and brought back with great technical ingenuity from an asteroid ...
Sixty-six million years ago, a 10-kilometer asteroid hit Earth, triggering the extinction of the dinosaurs. New evidence suggests that the Chicxulub impact also triggered a mega-earthquake that shook the planet for weeks to months after the collision. The amount of energy released in this mega-earthquake is estimated at 1023 joules, which is about 50,000 times more ...
About two billion years ago, an impactor hurtled toward Earth, crashing into the planet in an area near present-day Johannesburg, South Africa. The impactor — most likely an asteroid — formed what is today the biggest crater on our planet. Based on previous research, scientists have widely accepted that the impact structure, known as the ...
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