TEXTO PARA RECUPERAÇÃO - 2ª SÉRIE MÉDIO

We humans have probed the heart of the atom, unraveled the mysteries of DNA, and glimpsed the edges of space and time. Yet when it comes to understanding life's place in the universe, we are mere children, standing on a beach, staring uncomprehendingly at a vast, inscrutable ocean. Our predicament is not that we know nothing about life; it is rather that nothing we know can be compared with anything anywhere else. Ali the creatures of the earth - from worms to whales - are fundamentally cousins, linked by the same biochemistry, sharing the same planetary home. But is the earth's biosphere the only one there is? So far none of the other planets or moons in our system has been shown to harbor life. However, given the vastness of the universe, the possibilities are endless.