Don't look up, then this might sound rather familiar. loads of people have reviewed it badly but it has been really popular. it is long. this might sound familiar, what we are talking about now. later this morning, an asteroid will hurtle towards earth. there's no need to worry, though — unlike in the film, we're not in any mortal danger. asteroid 7482, as it is known, was first discovered nearly 30 years ago. it's one kilometre wide, making it bigger than the world's tallest building. the enormous space rock will pass earth nearly two million kilometres away. but scientists say it's the clo...