Because Mars is the closest planet to Earth
A star is a ball of plasma : life as we know it cannot exist there.
Since life as we know it requires water, scienctists hypothesize that Mars may have once had the conditions needed for life to exist.
To know about scientists life
Scientists look for molecules such as water, methane, and organic compounds like amino acids or nucleotides when investigating the possibility of life on other planets. These molecules are considered essential for life as we know it.
Life has been found just about anywhere on Earth.
Well I don't know about martians but scientists have discovered that the life paterns on mars do indicate that there could have once been small life forms such as bacteria, but there aren't any curent life forms at the moment.
you never know maybe in the future scientists will find a way to fight gravity
Currently it is not known. With current technology, we are not able to detect the presence of life on other planets even if it does exist. However, we now know that planets are relatively commonplace, which many scientists believe strongly suggests that life must exist elsewhere in the universe.
So far life has been only proven to exist on earth.
No. Not as we know it.
Scientists study the characteristics that make life on earth possible so they can figure out when life will know longer be possible. They also want to know what causes life to not be possible.
yes