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NASA astronauts have only managed to live continuously on the International Space Station (ISS) for a year and Biosphere 2 on Earth failed at two years of uninterrupted human habitation. Both cases required extracting the sickened people from the toxic environments. At this point it is ludicrous to talk about a permanent manned base on Mars.Steven Magee
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Thoughts have creative energy exhilaration is required to creates dissolves and recreates.Kishore Bansal
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We can only be enlightened to the meaning of wise words only and only if life have put and made us requiring them.Toba Beta
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Sometimes doing your best is not good enough. Sometimes you must do what is required.Winston S. Churchill
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Facts are always required to draw conclusions and make serious decisions.Sunday Adelaja