this is because they are trying to see if there is life on differant planets
Commands and controls are sent to spacecraft after launch, and data is returned, exclusively by radio.
Via radio transmission.
Although we have no definite knowledge of any extraterrestrials, and we certainly do not know that any extraterrestrials have received any messages from us, we have sent a number of things into space, notably radio and TV broadcasts and various robotic space probes, which would convey information to extraterrestrials if the hypothetical extraterrestrials received them.
Canada has never sent a Space Shuttle into space.
N.a.s.A sent the Apollo spacecrafts in space.
Commands and controls are sent to spacecraft after launch, and data is returned, exclusively by radio.
Via radio transmission.
Although we have no definite knowledge of any extraterrestrials, and we certainly do not know that any extraterrestrials have received any messages from us, we have sent a number of things into space, notably radio and TV broadcasts and various robotic space probes, which would convey information to extraterrestrials if the hypothetical extraterrestrials received them.
It is so that scientists, could investigate the effects of space exploration.
by radio
they also sent Monkeys. They did this to see what would happen if they sent them to the moon and Other places.
to see what is listening on the other side i think.but it is pointless to do,sinds stars are light years away from us and to get an answer back Will also take years to get back at us.also i don't think that it Good for us tell where were at in the universe don't think aliens will come in peace when they visit us
they were calm and easy to train
Hi thereOn October 4th 1957 the Soviet satellite "Sputnic", the worlds first artificial satellite, blasted into space and transmitted information via radio signals to Soviet scientists for three weeks.Hope this helped you.
Radio signals are sent from Earth, to operate the telescopes.
Yes
before the radio was invented, people and countries sent messages/letters carried by messengers to the destination wherever it may be located.