Astronomers Search for One in a Habitable Zone
This page is the CodyCross answer for the clue below from Space Exploration, Group 911, Puzzle 3 (Helen Sharman).
Question is: Astronomers Search for One in a Habitable Zone
and the answer is: PLANET
Word Meaning:
PLANET — (now historical or astrology) Each of the seven major bodies which move relative to the fixed stars in the night sky—the Moon, Mercury, Venus, the Sun, Mars, Jupiter and Saturn.
Definitions from Wiktionary.