Rants, Raves, and Rhetoric v4

Safe From Falling Satellites?

A U.S. military spy satellite the size of a school bus is falling. Without power, the controllers on the ground no longer can ensure it comes down in a controlled manner into the ocean. It could hit the ground in a month. At present, its unknown when or where it might hit.

The largest uncontrolled re-entry by a NASA spacecraft was Skylab, the 78-ton abandoned space station that fell from orbit in 1979. Its debris dropped harmlessly into the Indian Ocean and across a remote section of western Australia.

This quote got me thinking… Assuming this object comes down anywhere on the surface of the Earth, what are the odds of it hitting 1) a major city, 2) a populated area, 3) anyone, or 4) harmless to any human life? It seems to me the highest odds are on #4. Consider: 71% of the surface of the Earth is covered by water. So the only risk is it hitting a ship. The odds of #4 would be at the lowest 65-70%. People tend to congregate in groups up to tens of millions. Even farmland makes up only 40% of the land. Probably populated areas would not even get us to 50% of the land surface area.

Probably since the odds are so low anyone will be hit is the reason for the lack of “OMG we’re going to die!”


Posted

in

by

Comments

Leave a Reply