Saturday 's test is the first of three different launches that form part of the the northrop grumman lunar lander challenge .
星期六的测试是诺斯诺普格鲁曼月球登陆器挑战赛三次不同发射中的第一次。
This nasa robotic prototype lander sailed to an altitude of 100 feet during another successful free flight august 28 at nasa 's marshall space flight center in huntsville , alabama .
The challenge offers $ 1 million to the company that can create a low cost , high performance lunar lander to help nasa achieve its goals at a lower price .
" Our results are compatible with mars lander and orbiter data and with climate modeling , and suggest a cold and wet early mars , " they wrote in the journal nature .
The main activity on the lander 's schedule for monday was testing a method for scraping up a sample of icy material and getting it into the scoop at the end of the robotic arm .
星期一,着陆器所实施的主要活动计划是:试验一种方法,以便刮下冰冻材料,并将其装进机械手末端铲子里。
Nevertheless , there have been occasional slivers of suggestive evidence , such as the supposed presence of briny droplets on the legs of the mars phoenix lander , a nasa probe , which also discovered perchlorate , a chemical which can lower the freezing point of water , in the martian soil .