A new era in search for 'sister Earths'?

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A Jupiter-sized planet passes in front of its star in this artists impression of a transiting exoplanet. Photo: NASA ESA and G. Bacon
A Jupiter-sized planet passes in front of its star in this artist's impression of a transiting exoplanet. Photo: NASA, ESA, and G. Bacon

Research presented at a recent astronomical conference is being hailed as ushering in a new era in the search for Earth-like planets by showing that they are more numerous than previously thought and that scientists can now analyze their atmospheres for elements that might be conducive to life.


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