The head of planetary defense at the European Space Agency discusses 2024 YR4, an asteroid with a small chance of striking ...
A newly discovered asteroid has quickly shot to the top of NASA’s risk list. The asteroid, named 2024 YR4, has about a 2.1 ...
An asteroid capable of flattening a mid-sized city could potentially collide with Earth eight years from now, as its orbit around the sun briefly intersects the path of our planet. Named 2024 YR4 ...