Oh for Pete's sake. It's a big snowball, a rock, a bunch of frozen dirt. Do you think the same isn't true when we cut a large diamond? Or blast a mine, or divert a river, build a dam or bulldoze a hillside. It's all stuff, just rocks and dirt and minerals. Just exactly WHO is being hurt by this?
That's the kind of mentality held by liberal enviro whackos. God put that stuff here for us to use and study and benefit from. Scientists are going to learn a lot about our solar system and how it was formed by this. It is VERY worthwhile, and it hurts NO ONE.
But there are still questions left. Like what is under the surface. Hopefully the Impactor probe will shed some light on this.