“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…

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

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