People 1
I was the first to make extensive use of telescopes to study the heavens
Galileo
I discovered that white light is made up of many colors
Newton
reflection
What is any object that orbits a larger object?
satellite
What kind of satellite would relay a phone call from America to Australia?
communication
I was the astronautical engineer who helped make the United States the leader in space exploriation
von Braun
I was the first human being to set foot on the moon
Armstrong
Light travels this many miles per second
186,000
what is an unmanned spacecraft launched specifically to explore the unknown?
space probe
What are rotating stars that emit directional beams of radio waves?
pulsars
I was America's first person in space
Shepard
I was the first man to travel in space
Gagarin
What consists of a vibrating electric field and a magnetic field
electromagnetic waves
What kind of satellite would a meteorologist use to learn of a coming hurricane?
weather
What is a device that splits light into a a spectrum for analysis?
spectroscope
I was the first American to orbit the earth
Glenn
I am known as the Father of Modern Rocketry
Goddard
frequency
astronauts
Is Mars an inner or outer language?
inner
I developed the reflecting telescope
Newton
I discovered the planet Uranus
Herschel
What is any back and forth motion that repeatedly follows the same pattern?
oscillation
What is a device used to make distant objects appear clearer and closer?
telescope
What orbit allows a satellite to remain in the same spot above the earth at all times?
geostationary