Butterflies are slated to get another shot at surviving life
aboard the International Space Station. Thousands of students plan to join
scientists in watching NASA's space shuttle Atlantis launch to the space
station on Nov. 16 with a cargo of two butterfly species, apparently
undiscouraged by last year's experiment where caterpillars in space failed to
emerge from their cocoons.
The butterfly habitats hold larvae of both painted
lady butterflies and monarch butterflies, and are scheduled
to fly to the space station within a suitcase-sized payload built by
BioServe Space Technologies. Scientists at the University of Colorado in Boulder expect to compare the space caterpillars with butterfly larvae raised on
Earth by students from 100 U.S. elementary and middle schools. Hundreds of
other schools may join informally by creating their own butterfly habitats.
Two orb weaving spiders managed to spin
their webs last year aboard the space station, and so scientists hope to
have better
luck this time in witnessing caterpillars transform into butterflies —
regardless of the seemingly weightless microgravity environment.
"We did extensive testing this summer and believe we
have resolved the problem," said Stefanie Countryman, the payload mission
manager for BioServe. "We are adding the monarchs because we had the good
fortune of being able to fly two butterfly habitats."
The caterpillars are scheduled for transfer from the space
shuttle to the space station about two days after launch. They will then take
about five days to pupate and form a cocoon, and spend another seven to 10 days
before hopefully emerging to spread their wings.
Automation takes care of most of the space station
experiment, but astronauts will participate briefly by opening the nectar food
source around the 10-day mark for any butterfly survivors. Meanwhile, the butterflies
on Earth may sup on a different delicious liquid diet.
"Gatorade can be diluted with water and used for
butterfly nectar," Countryman told SPACE.com. She added that the
space butterflies would not have the chance to sample Gatorade during their
stay in space.
Images taken every 15 minutes will track the butterflies
progressing through all stages of life, and become available daily on websites
such as bioedonline.org and the Monarch Watch website.
The butterfly experiment represents the latest in a long
line of Bioserve payloads flown on the space shuttle, space station, Russia's MIR space station and Soyuz spacecraft. Most of the upcoming payloads slated for
the remaining space shuttle flights represent commercial or life science
experiments.
But Bioserve also plans to run another classroom experiment
next year, and allow students to connect with the space program beyond being
observers.
"This experiment is slated as an educational payload,"
Countryman said. "However, there is solid science that can and hopefully
will result from these experiments."
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