NASA releases photo of ocean world. It shows why NASA's going there.

[PJMcK]

2. Europa is much more likely to have life than Mars

Mars may have once had microbial life. It would be surprising if it didn’t if the evidence of water is correct.

But Europa is an active planet with intense gravity from Jupiter. The ocean could be warm enough and nutrient-rich enough to spawn life.

Robotic craft are far less expensive and have “very small egos.” That’s where we might find active life. Imagine how the world’s perception of the universe will change with such awareness and knowledge!