A billion years in astronomy
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AnswerCrossword Clue
EONA billion years, in astronomy
AEONA billion years, in astronomy (Var.)
EONOne billion years, in astronomy
secpar(in astronomy) a unit of distance equivalent to 3.262 light years
parsecsA unit of distance used in astronomy, equal to about 3.25 light years (3.08 Î 1016 meters). One parsec corresponds to the distance at which the mean radius of the earth's orbit subtends an angle of one second of arc
EONA billion years, in geology
universesAll existing matter and space considered as a whole; the cosmos. The universe is believed to be at least 10 billion light years in diameter and contains a vast number of galaxies; it has been expanding since its creation in the Big Bang about 13 billion years ago
EON365 billion days, in astronomy
EONOne billion years in ONE?
EONOne billion years, in geology
EONOne billion years, in geologic time