NASA found intriguing rocks on Mars, so where does that leave Mars Sample Return?
NASA's interim administrator Sean Duffy was fired up on Wednesday when he joined a teleconference to talk about new scientific findings that concerned the potential for life to have once existed on Mars. "This is exciting news," said Duffy about an arrow-shaped rock on Mars found by NASA's Perseverance rover. The rock contained chemical signatures and structures that could have been formed by ancient microbial life. The findings were intriguing, but not conclusive. Further study of the rocks in