YR4 is a tailor-made asteroid for planetary defence efforts — it has everything it takes to get our attention." ...

Earth is perfectly safe from a menacing asteroid known as 2024 YR4 that is big enough to level a city, but the moon? Not so ...

An asteroid the size of a 10-story building could collide with the Moon in 2032 – and NASA just upped its impact odds again ...

Allison MacGillivary recounts the moment she and her family spotted a killer whale swimming backwards off the shoreline in ...