บท 299: Chapter 292: Zero Plain_1

"East longitude 73 degrees, south latitude 69 degrees, radius 40 kilometers."

Xie Liaofu quickly pulled up the high-resolution color images of Mars released by NACA and found that location, zooming in to observe it closely.

It was near Mars' southern polar ice cap, though still at some distance. Nothing unusual could be discerned from the map.

Of course, this was expected. If something abnormal could have been discovered by a cursory satellite pass, this site would have been found long ago, and there wouldn't have been a reminder from the system.

A radius of 40 kilometers meant an area of about 5000 square kilometers, roughly the size of a medium-sized city—definitely not a small place.

Xie Liaofu stared for a while before muttering to himself:

"Non-natural phenomenon, non-natural phenomenon, this term does have implications."

"What implications? Shouldn't non-natural mean caused by human factors... or perhaps by intelligent beings?"