WASHINGTON: New observations of a small asteroid discovered in December have led astronomers to conclude that the chances of it striking Earth are almost zero after earlier data had indicated a higher risk of a collision with this space rock about 40 to 90m wide. The asteroid, called 2024 YR4, is orbiting on a path that will bring it close to Earth in 2032, with scientists previously calculating impact probability at around 3 per cent, the highest value ever recorded for such an object. The new