No
In 1971, the Soviet Union launched Mars 2 and Mars 3. Mars 2 crashed upon reaching Mars, while Mars 3 was the first spaceship to make a successful landing. Unfortunately, communications ceased from the Mars 3 lander after only 20 seconds. There were no landings in 1970.
No, Mars is not the most visited planet in our solar system. The most visited planet is Earth, followed by Mars and Venus. Multiple spacecraft have been sent to Mars to study its surface and atmosphere, but Earth remains the most visited due to human presence and satellite communications.
They aren't controlled instantaneously. We still rely on radio waves, and they take a little time to get back and forth from Mars. Depending on where we are relative to Mars, it can take anywhere from 3 to 20 minutes for radio communications to make a one-way trip.
In an age of geocentric satellites, the moon's orbit would preclude its reliability. However, the moon was used as a type of 'communications sat' back in the 50s, and modern-day satellites grew from that program. See link.
Sojourner landed in July 1997 and communications were lost in September of that year. Spirit landed in January 2004, and is still functioning but it is stuck in sand. But data is still collected from it. Opportunity also landed in January 2004 and it still functional.
-- food -- water -- air -- underwear & socks -- entertainment -- communications device -- something to read -- soap & toothpaste -- a heavy jacket -- your camera -- enough fuel to get back
Not by people.Exploratory space vehicles carrying robotic scientific instrumentation and communications equipment have surveyed Mars from orbit, and have landed and explored its surface. But there has been no "manned" (peopled) voyage to that planet.A NASA program has been proposed that could lead to a manned landing on Mars some time after 2020; but the chances of it being adopted are considered slim, mainly because of budgetary considerations.
Constructive Communications Strategy how can you explain it
Unified Communications
The population of Charter Communications is 16,800.
Clear Communications was created in 1991.
Coretec Communications provides the latest in video communications technology. They offer encoders and decoders as well as software and accessories for digital communications.