1.   Certain Martian surface features have been interpreted as evidence of ancient ocean beds and widespread glaciation.

2.   Already, scientists and reporters are giving nicknames to the Martian features.

3.   Already, both the scientists and reporters are giving nicknames to the Martian features.

4.   While the new pictures show important, new Martian features, he said, he is skeptical of the explanations for the apparent flows.