astronomy – n. the scientific study of stars, planets, and other objects in outer space
optical – adj. relating to or using light
cloak – v. to hide or disguise something
molecule – n. the smallest possible amount of a particular substance that has all the characteristics of that substance
technique – n. a way of doing something by using special knowledge or skill
What would you photograph with such a camera? What inventions have you read about in science fiction books or seen on television programs or in movies about the future that you would like to use? We want to hear from you. Write to us in the comments section.