Satalites Flashcards
what is a satellite
anything that orbits around a planet
what is the natural satellite of the earth
the moon is the only natural satellite of the earth
where can artificial satellites be put
can be put in orbit around the earth
what are artificial satellites used for
for communications (transmitting telephone calls or television programmes) or for navigation.
what are space telescopes and what are they used for
satellites and can take very detailed pictures of the planets and stars without clouds or dust in the atmosphere getting in the way.
cons about space telescopes
expensive to launch and need to be repaired by astronauts, which is expensive and cant be done very often
what are space probes
are unmanned space craft that are sent to take pictures or gather data about other planets or moons.
what is an orbiter
a space probe that is put into orbit around another planet and takes pictures or measurements from space
what are landers
Landers are spacecraft that land on other planets or
moons, to take pictures or to analyse samples of rock or soil.
how can space probes send information back to earth
by radio signals