Talk_with_an_Astronaut.txt

things that have been done with knowledge, skill, or ability; achievements

the central point of attraction, attention, or activity

the natural force that causes objects to move or tend to move toward the center of the earth

screens connected to a computer, which show information and instructions

a part played by a person in real life; role model, a person whose patterns of behavior influence someone else's actions and beliefs

definite; precise; particular

creatures from outer space

hard to imagine or believe; incredible

the condition of being free from the pull of gravity