From earthworms to 'wormonauts'
本文作者： 21ST
TALK about a change of scenery: NASA last week launched 4,000 earthworms into outer space. This time, however, the worms are not being used as fish bait, but as guinea pigs for future long-distance human space travel. |  |
| |||||||||||||||||||||||||||||||
京公网安备 11010502033664号