Are we alone in the universe? Key questions on the universe and if we are alone. 3.0 / 5 based on 2 ratings ? Science in SocietyASAQA Created by: Imaad ShaikhCreated on: 04-05-10 17:30 if life is common in the universe, why is it difficult to find any signs of life? Our telescopes are not powerfull enough to find life 1 of 5 The habitable zone is the region of space around a star where the surface conditions of any planets could be favourible for life to evolve? True 2 of 5 Why do scientists take an interest in mars and europa when searching for life? Both Mars and Europa have"Earth-like" conditions 3 of 5 how do astronomers investigate the chemical composition of distant planet and stars? spectroscopy 4 of 5 what is the signature of life? evidence from observations and measurements that life has existed in the place that is being studied 5 of 5
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