An Angel survived crashing into a planet during the events of the Byzantium.
There's one survivor. There's a thing in the belly of that ship that can't ever die.
The Time of Angels
What makes you think you can destroy or damage a Weeping Angel?
We've seen them quantum locked and wiped from time but never physically harmed.
Later in the Time of Angels the Doctor tells us they've lost form due to being starved for centuries.
RIVER: But there was only one Angel on the ship. Just the one, I swear.
AMY: Could they have been here already?
DOCTOR: The Aplans. What happened? How did they die out?
RIVER: Nobody knows.
DOCTOR: We know.
OCTAVIAN: They don't look like Angels.
AMY: And they're not fast. You said they were fast. They should have had us by now.
DOCTOR: Look at them. They're dying, losing their form. They must have been down here for centuries, starving.
AMY: Losing their image?
DOCTOR: And their image is their power. Power. Power!
DOCTOR: Don't you see? All that radiation spilling out the drive burn. The crash of the Byzantium wasn't an accident, it was a rescue mission for the Angels. We're in the middle of an army, and it's waking up.