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"A definitive guide to astronomy's hottest field." -- The Economist Since its formation nearly five billion years ago, our planet has been the sole living world in a vast and silent universe. But over the past two decades, astronomers have discovered thousands of "exoplanets,"... Read Full Overview

Since its formation nearly five billion years ago, our planet has been the sole living world in a vast and silent universe. Now Earth's isolation is coming to an end. Over the past two decades, astronomers have discovered thousands of exoplanets orbiting other stars, including... Read Full Overview

Since its formation nearly five billion years ago, our planet has been the sole living world in a vast and silent universe. Now Earth's isolation is coming to an end. Over the past two decades, astronomers have discovered thousands of exoplanets orbiting other stars, including... Read Full Overview