The stellar runts of the galaxy probably aren't so great for nurturing Earth-like worlds, say scientists running new simulations of the formation of planets around a variety of stars.
By tracking the phases of six exoplanets, astronomers have tracked their daily weather cycles for the first time.
Astronomers have discovered two new alien worlds a bit larger than Earth circling a nearby star.
Astronomers have detected an exoplanet's visible-light spectrum directly for the first time ever, a milestone that could help bring many other alien worlds into clearer focus down the road.
The iconic Hubble Space Telescope turns 25 this month, and getting the ball rolling on a life-hunting successor instrument would be a fitting birthday present, one prominent researcher argues.
Astronomers have devised an instrument that could lift the veil of doubt over whether we're alone in the universe.
Does it exist or not? Astronomers are claiming that the potentially habitable exoplanet is just noisy data, while others say it's too early to discount the existence of Gliese 581d.
The hunt for signs of life on planets beyond our solar system should cast as wide a net as possible, some researchers stress.
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