One of the crucial elements for life to be able to develop, at least in the form that we know it, carbon based, is the existence of water. One of the early measurements that the Curiosity rover made on Mars .
Two huge planets found orbiting a star 375 light-years away are the oldest alien worlds yet discovered, scientists say.
With an estimated age of 12.8 billion years, the host star—and thus the planets—most likely formed at the dawn of the universe, .
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