antenna
astronomy
astrophysics
blue
communication
connection
device
distant
electrical
electromagnetic
equipment
exploration
far
forest
global
green
huge
industry
information
intelligence
lake
landscape
large
listen
listening
majestic
nobody
observatory
observe
outpost
radar
radio
receiving
reflector
research
satellite
science
search
sky
space
sunlight
system
technology
telecommunications
telescope
tower
universe
watching
wireless