Russia blasts gerbils into space
The
Russian space agency has blasted 10 gerbils into space for a 12-day mission to
test the possible effects on humans of a flight to Mars.
The
small mammals, similar to mice and rats, are being kept in special cages with
a supply of nuts and cereals.
Day
and night will be simulated and special machines will clean their excrement in
the weightless conditions.
The
gerbils may find space preferable to returning to Earth - several are to be dissected
upon their return.
The
furry rodents lifted off from the Russian-run Baikonur space centre in Kazakhstan
on Friday in a Soyuz rocket.
Gerbils
are probably more suited than most rodents for space flight because they conserve
body fluids by producing a minimum of waste.
The
10 are all sand rodents, praised as "a very interesting object for research"
because they "can live for more than a month without using liquids,"
said Anatoly Grogoryev of the Russian Academy of Science.
"This
will enable scientists to determine salt exchange mechanisms in zero gravity conditions."
Gerbils,
as many pet owners have discovered, are gregarious and active in daylight, which
makes them easy to observe.
The
10 gerbils will be filmed during their space flight.