Looking for life away from Earth The search for life in places other than Earth usually focuses on our neighbour Mars, a planet that's technically in the "habitable zone" of our Solar System . But Mars is not an attractive place to live, due to its lack of atmosphere and high levels of radiation . However , it's close to Earth, making it relatively easy to send missions to explore it. But there are other places in the Solar System that could support life - some of the moons of Jupiter and Saturn . Why? They have liquid water. Here on Earth , water is the solvent of life:water dissolves salts and sugars , and facilitates the chemical reactions needed for life on Earth to proceed . It's possible life forms exist elsewhere that rely on liquid methane or carbon dioxide or something else, but life as we know it uses

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Looking for life away from Earth The search for life in places other than Earth usually focuses on our neighbour Mars, a planet that's technically in the "habitable zone" of our Solar System . But Mars is not an attractive place to live, due to its lack of atmosphere and high levels of radiation . However , it's close to Earth, making it relatively easy to send missions to explore it. But there are other places in the Solar System that could support life - some of the moons of Jupiter and Saturn . Why? They have liquid water. Here on Earth , water is the solvent of life:water dissolves salts and sugars , and facilitates the chemical reactions needed for life on Earth to proceed . It's possible life forms exist elsewhere that rely on liquid methane or carbon dioxide or something else, but life as we know it uses

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Pertanyaan ini berkaitan dengan pencarian kehidupan di luar Bumi dan fokus pada planet tetangga kita, Mars. Meskipun Mars berada dalam "zona kehidupan" dari Sistem Tata Surya kita, namun tidak menarik untuk ditinggali karena kurangnya atmosfer dan tingginya tingkat radiasi. Namun, karena kedekatannya dengan Bumi, memudahkan pengiriman misi untuk menjelajahinya. Namun, ada tempat lain di Tata Surya yang bisa mendukung kehidupan, yaitu beberapa bulan dari Jupiter dan Saturnus. Alasannya adalah mereka memiliki air cair. Di Bumi, air adalah pelarut kehidupan; air melarutkan garam dan gula, dan memfasilitasi reaksi kimia yang diperlukan untuk kehidupan di Bumi berlangsung. Mungkin ada bentuk kehidupan yang ada di tempat lain yang bergantung pada metana cair atau karbon dioksida atau sesuatu yang lain, tetapi kehidupan seperti yang kita kenal menggunakan air.

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