People cannot safely consume water that contains chemical pollutants.
The first sentence is an unnecessary rhetorical question.
It is not necessary to include the telemetry data, as it adds little of value to the study of stellar drift.
In this situation, there are two different but related thoughts: the merits of the data, and whether or not to include it. It is therefore best to combine the sentences, which can be done elegantly without destroying the flow of the passage.