HEADS DOWN!
It's
Duck-and-Cover time, folks, as a big piece of space junk is headed our
way and just may hit someone! Sure, the chances of it hitting YOU in
particular are about 1 in a trillion, but hey, you're on the planet,
aintcha?
UARS in orbit.
NASA's
Upper Atmosphere Research Satellite (UARS) is expected now to re-enter
the atmosphere sometime late Friday the 23rd or early Saturday the 24th.
As the trajectory becomes more clear, it seems that we Americans may be
in it's probable fall zone. That zone could be an estimated 500 miles
long.
UARS
has had a good life, performing its research since 1991 in orbit of the
Earth. It's a big boy, though, about 6.5 tons and the size of a school
bus (why are things always related to the size of a bus or Rhode
Island?) and it won't all burn up during re-entry. Scientists have
estimated that about 26 pieces will survive to land on the ground. The
fall through the atmosphere will cool the pieces so it shouldn't be hot
when it lands. However, there are some coolants and reactants that could
be harmful to human flesh so if you should find a piece, don't touch
it(!) but rather notify local police and take lots of awesome pictures.
Mr. Daymont
Space Center Educator
Mr. Daymont
Space Center Educator