What`s the chances of Mar`s Phoenix land rover staying on it`s THREE leg`s when it lands on Mar`s?

Chances are good.

The Surveyor unmanned Lunar lander of the 1960s had only 3 legs. Seven of them were launched and five landed OK. The two that did not land OK went out of control before landing, their loss was not due to tipping over after landing.

By the way, Phoenix is not a rover. It has no wheels and will not move at all after it lands.

I think NASA has done more testing with landing configurations than you have. You could give it 15 legs, and still have something go wrong.

The trick with 3 legs is, you want a low center of gravity - and if you look at the lander, it has that. I wish them luck - only 5 of the 15 landers sent to Mars have functioned. But, lucky for us - all 5 were US built. Let's hope for a successful number 6.

Rosco, you take the biscuit, kiddo.

Satellite design ain't your area of expertise, is it? You the expert now? NASA made a big mistake when they didn't hire YOU to design the probe?? Your design have ten legs? Twenty legs? How many legs is enough to suit YOU? How much does this probe have to weigh in unnecessary material before it becomes a two-billion dollar probe because of material and fuel costs?

The Lunar Excursion Module landed successfully on the Moon each and every time it attempted to -- 6 times in all. Hmmm.....100% success ratio. Gee, Rosco. I guess we have no confidence in a three-legged design.

And BTW, for those of you anxious to get to Mars, do you want a soft landing on three legs tested, or one in which the astronauts can bounce their collective buns all over the Martian surface in a giant globule of air-bags?

Take a couple of anti-cynic pills and call me in the morning.

i think they wouldnt go through all that trouble if it would tipple over they no what they are doing i hope so anyway lol but u could be right if it does ime coming to blame you lol

fair chances