Tex Number 2 Classroom Inglish

from the days of the " martian canals" , once though many to have been made by and intelligent civilization but later proved to be an optical illusion , to our current preoccupation with gatheingdata in the hope of providing us with more information , our fascination with the red planet continues.
in the early days of space exploration , visits were restricted to "fly-bys", such as those bythe mariner probes , whereby craft would simply pass the planet , taking pictures and obtaining data as they went. the mysteries of its surface , equipped with instruments which continued to relay dataabout the environment until they stopped working.
the more recent "Rovers" move around he planet's surface as they gather information. Current proposals include missions to study terrain, climate ,and soil components , in order to determine amongst and, thanks to erosion feactures , mineral deposits and other factor , it is also believed that liquid water once flowed there.
once of the mostrecent craft is phoenix, a Rover wich landed in november 2008. named after the mythological bird , phoenix's mission was to abtain samples from beneath the surface by digging into the arctic ice ,while its high-resolution camera provided geological data and other equipment scanned the atmosphere, measuring temperature and pressure in a bid to discover whether the chemicals necessary for life mightexist beneath the surface. the craft was expected to send back data for three months , but managed to hold out for a further two.
an especially important part of the project was the need to maintainstrerility of the equipment , in order to ensure that any organic material collected was ot contaminated by "hitchhiking" terrestrial microbes in the future manned landings may be possible-andthought it may seem an outrageously difficult aundertaking plans have already been discussed for the " terraforming" of the planet - giving it an atmosphere , oceans and a terrain similar to earth, with...