Rockets are not needed in order to detect the planet Mars. Mars has been known
for as long as humans have had eyes and enough brain matter to be interested in
the night sky, and actually for some time before there were any rockets. Mars can
be seen somewhere in the sky for most of the days out of every two or three years.
water was recently discovered on planet mars
Planet Mars has never discovered anything!
The planet Mars is known from prehistoric times.
mass,volume, gravity,of mars
Mars has been known for thousands of years. No particular "discoverer" is known.
in the late 1600'S
1972
No, Mars was the ruling planet of Scorpio until Pluto was discovered. Then, Pluto became the ruling planet of Scorpio.
Mars, the planet, was first travelled to in 1965 by Mariner 4 (a spacecraft) by the country USA from NASA.
no life has been discovered on mars, so it is already "dead" in that sense.
Not sure what you mean, once you see something you have discovered it.
by rockets