electromagnetic waves
antenna
blue
channel
circular
communicate
communications
concave
construction
contact
cosmic
deep space
elevation wheel
exploration
extraterrestrial
framework
hertz
huge
interplanetary
interstellar
issuance
microwave
parable
parabolic
power
quadrant
radio
radio astronomy
radio frequency
radio telescope
receiver
reception
reflector
scanning
scenic
scrutinize
structure
subreflector
support
surface
tracing
tracking
transmit
transmitter
unpolluted
view
white