A telescope is the instrument an astronomer uses to study matter in space.
at a space agency like NASA
astronomer means a person who gose to space and studies space
Astronomer, Space Engineer, Astronomer in the Space Station Those are just a couple
There are a number of exciting things to an astronomer. You might discover a new comet, or be the first to see a nova or supernova. Having your instrument design launched on a space probe is right up there, too. But for the most part, astronomers don't go into that line of work because they crave excitement.
An Astronomer.
Astro Space
Astronomer
Astronomer
An astronomer
Astronomers study astronomy, which is outer space, otherwise some astronauts study outer space when they travel to the moon.
An astronomer.
Galileo Galilei developed a number of inventions. The hydrostatic balance and the thermometer. Although he is an astronomer, specializing in the study of matter in outer space.