Life existed on Earth when Hades ruled – it even had a ‘rudimentary’ immune system

Life flourished on Earth much earlier than previously thought, thriving under the harsh rule of ... [+] Hadean Aeon. LUCA—the last universal common ancestor—was even designed to repel ancient viruses.Getty…

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“Dark comets” may be a much bigger threat to Earth than we thought, a new study warns

Mysterious, nearly invisible objects known as “dark comets' may pose a greater threat to Earth than scientists thought, new research suggests. These small, rapidly rotating objects wander near Earth, possibly…

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When an asteroid the size of a cruise liner whizzes by Earth, two spacecraft may follow | CNN

Sign up for CNN's Wonder Theory science newsletter. Explore the universe with news of fascinating discoveries, scientific breakthroughs and more. CNN — When a cruise liner-sized asteroid approaches within 19,883…

Continue ReadingWhen an asteroid the size of a cruise liner whizzes by Earth, two spacecraft may follow | CNN