It sounds like a reasonably high bar, people will not literally die from this.

I'm guessing the nearby lighter ones would collide into the larger one. Those at Lagrange points will remain.

Wings. They develop wings and can fly. The saying is referring to wings.

I read this as bears enter this campground AND store food in vehicles

TIL that the S is not for sergic

I read this twice as 'involved with water' before noticing the context

Yeah. I thought Mars Sample Return was hard until I saw someone on the internet speculating about the reverse. For a Martian, Earth Sample Return would be way harder.
"It hits the atmosphere going *how* fast? And then you want a rocket that will get back out?"
Martian invasions are a one way trip.