The Cherry Creek UFO Incident
There aren't many UFO reports about a UFO that floats right above the ground or actually lands. An excellent report about this type of appearence with multiple eyewitnesses is the Cherry Creek UFO Incident of 19 .
One of the crucial elements for life to be able to develop, at least in the form that we know it, carbon based, is the existence of water. One of the early measurements that the Curiosity rover made on Mars .