The moon's far hemisphere is never directly visible from Earth and while it has been photographed, with the first images appearing in 1959, it has never been explored.
"His macho side has never been explored, but why should he be different from anybody else?" As a woman, Mrs. Clinton was in uncharted territory, Ms. Phillips said.
Lake Vostok, a Lake Ontario-size body trapped far beneath the ice on Antarctica, has never been explored for fear of contaminating the ancient ecosystem.
This has never been explored in the literature.
Such method of finding stress behavior has never been explored before.
However, the effect of chronic APAP treatment on the CGRP has never been explored.
The relationship of such comment update practices and software bugs has never been explored empirically.
However, the interplay of these two mechanisms during a full evolutionary trajectory has never been explored.
However the impact of small amount of deuterium content which is always present in water has never been explored before.
However, the underlying mechanism remains unknown and its potential application to other tissue engineering materials has never been explored.
The relationship of subjective PD-related fatigue to tasks combining cognitive and motor effort has never been explored.
