Planet Mars

it's very cold and dry and its weak gravity only holds a thin
atmosphere as probes started to visit the red
planet we gained a more accurate view of the surface and scientists began to
wonder Mars had once been much warmer it had rivers and in its early years might have sustained life
a succession of new techniques have been deployed trying to unlock the secrets of
the red planet and while our
knowledge of the Martian
geology its atmosphere and its weather has grown immensely each new Mission to
Mars raises more questions than it answers
we still don't know if Mars has at some
time been a home to life in 1877 astronomer Giovanni chaparelli made what he thought was the most
accurate map of Mars yet drawn on it he showed canals in the early 20th century American astronomer Percival Lowell was convinced the canals were signs of a civilization
existing on the red planet so began the search for Life on Mars.