unit to measure distance in space

large group of stars, dust, and gas

station in space that houses astronauts for long periods of time

uncrewed vehicle used to explore space

technologies orginally for space, now used commonly on Earth

reusable manned space vehicle

space vehicle that lands on moons/planets

machine that uses escaping gas to move

man made object that orbits earth

series of space probes that conduct studies using different wavelengths

geostationary earth orbit; above the same spot at all times

low earth orbit: military spying, mapping, photographing Earth