blue
circle
contour
dark cerulean
device
discover
discovery
equipment
find
focus
glass
graphic
icon
illustration
instrument
learning
lens
line
look
magnify
mark
observation
observe
ocular
optical
optics
pictogram
planetarium
science
scope
search
sign
silhouette
sky
spy
spyglass
stars
symbol
telescope
tool
tripod
view
watching
white