Tom was quiet for a moment, and then added, "Same here, astro."
“The astro One left Earth thirteen years ago,” the man said.
astro wanted the advantage of the first kick at the ball while the mercury tube inside was still quiet.
astro and Roger followed, dragging their feet and rubbing their eyes.
They went directly to the power deck where astro was waiting for them, the Geiger counter in his hand.
"Well, it's not that we're against speeches," ventured astro.
"There are still some things I don't understand," said astro.
Corbett, you and astro go back to the shack and give Roger a hand.
"Maybe you're trying to make it too small, astro," commented Connel, looking over the drawing.
"Nothing to worry about," he said, as astro rushed to his side.
element active in English word formation from mid-18c. and meaning "star or celestial body; outer space," from Greek astro-, stem and comb. form of astron "star," related to aster "star" (see star (n.)). In ancient Greek, aster typically was "a star" and astron mostly in plural, "the stars." In singular it mostly meant "Sirius" (the brightest star).
A prefix that means "star" (as in astrophysics), "celestial body" (as in astronomy), or "outer space" (as in astronaut).