A crew of mice, flies, and ants, to be used for biomedical research in space, are on board a spacecraft that Russia is preparing to launch from the Baikonur Cosmodrome in Kazakhstan.
On other missions, the rocket typically rolls to the launch pad a few days before launch. On this one, however, a Soyuz rocket that will hoist the Bion-M No. 2 biosatellite into orbit rolled out on Tuesday, one day ahead of the scheduled lift-off.
“This is due to the preservation of the biological samples on board,” said Roscosmos, Russia’s space agency. “The goal is to reach weightlessness as quickly as possible.”
The purpose of sending mice to space is to evaluate the impact of radiation and zero gravity on the rodents, including whether time in space affects their hormonal balance, immunity, reproductive processes, and metabolism. Russia has conducted similar missions in the past, including the Bion-M No.1 satellite launch in 2013 that ferried mice, gerbils, snails, and fish to space. The Bion-M No. 2 mission has been delayed multiple times in recent years.
Such experiments could help prepare humans for long-term space travel. Mice have a genetic similarity to humans, and their short life cycle allows for the tracking of changes across generations, according to Roscosmos.
During the 30-day mission of the Bion-M No. 2, “scientists will receive real-time data on the rodents’ condition using special cameras and sensors inside the mouse boxes. Moreover, some individuals will have implanted chips,” the space agency said.
It said the living conditions of the dozens of mice on the satellite resemble a “miniature hotel” in which they have feeding, lighting, ventilation, and waste disposal systems. The accommodation is more spacious than it was for the mice on the Bion-M No. 1 satellite more than a decade ago.
Fruit flies, ants, tomato seeds and fungi are also on this week’s space-bound mission. The tomato seeds, part of an experiment being conducted by Russian and Belarusian schoolchildren, will be planted on Earth after the space mission to see how they grow.