In general I agree with you about the dubious science, Ann, but I will point out that *small* rocks hurtling towards earth happen all the time, and they burn up in the atmosphere (shooting stars) with very little effect. Larger chunks, however, are definitely a problem. Still, I'm wondering how else they would handle it? Lacking Bruce Willis & Ben Affleck, I mean wink Rockets might be the best they could come up with. At least in this version they sent more than one! smile

PJ

"You told me you weren't like other men," she said, shaking her head at him when the storm of laughter had passed.
He grinned at her - a goofy, Clark Kent kind of a grin. "I have a gift for understatement."
"You can say that again," she told him.
"I have a...."
"Oh, shut up."

--Stardust, Caroline K