Mechanical Butterflies?
MImeKillEr writes "According to an article on BBC News, two researchers from Oxford took highspeed photographs of an Admiral butterfly in a specially-designed windtunnel to study how butterflies fly. The resulting research brings insight into small-scale flight dynamics. Although the article doesn't give an ETA on this, they expect to be able to build an aircraft with a 10cm wingspan that will be either autonomous or radio controlled. This will allow them to be used in rescue missions, cave exploration and possibly even on Mars."
In the atmosphere of Mars, the are only 1.5% the molecules we have. The composition is also evry different, but the point is: it's _very_ thin. OTOH, the gravity on Mars is about 38% of Earth's gravity.
So if you have something that flies on Earth, it's still a long way to go until you get it to fly on Mars.
but what do i know, i'm just a model.