TASK 8 One Heart Group
Task 8 : READING MATERIALS AND TASKS Text One: Red planet Renaissance Just five years ago, astronomers viewed Mars as an essentially dead world. Recent discoveries made by the Mars Global Surveyor spacecraft and gleaned from Martian meteorites have changed that opinion. The new picture of a `youthful Mars' not only confirms that geological activity occurred abundantly in the first two thirds of Mars's history, but also that it has continued until comparatively recently, and probably persists up to the present day. These findings will have a dramatic effect on the human exploration of Mars, and the quest to learn whether life ever existed there. In the next few decades the subsurface layers of Mars will be examined in a search for Martian microbes, either past or present. The test of whether life evolved on Mars is a major scientific problem because an answer either way would have profound consequences. If life did evolve on Mars, what was it lik...
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