Editorial: A planet just like home
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For however many millennia mankind has peered at the heavens, no one had ever identified a planet outside the solar system, and, being prone to extrapolating, many assumed no one ever would.
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An azure lake glimmered while ancient pines loomed nearby. My parents and I admired nature's simple beauty, but does everybody look up from their technological wonders to view the natural ones?  Nature gives us everything from oxygen to the material items we enjoy.
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Science & environment: Britons know that the planet is heating up - but are still not ready to change their lifestyle
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Two separate teams of astronomers find Neptune-size planets beyond our solar system. Earth-like planets are just around the corner, they say. By Amit Asaravala.
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MAUNA KEA, Hawaii -- The sharpest image ever taken of a dust disk around another star has revealed structures in the disk which are signs of unseen planets.     Dr...
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Astronomers have found the first signature of complex organic molecules in the dust cloud around a distant star, suggesting that these building blocks of life may be a common feature of planetary systems.
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The universe looked a little more familiar and friendlier. The roll call of planets beyond the solar system swelled significantly with the announcement of a trio of newly-discovered worlds much smaller than any previously discovered around other stars.
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Astronomers find a strange new world that has them pondering again the essential properties of a planet.
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Researchers have discovered two planets in a solar system 5,000 light-years away that appears to be structured in some important ways like our own.
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Global warming is real. We did it. Now it's time to talk about repairs. By David Wolman from Wired magazine.
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A nearby star thought to harbor comets and asteroids now appears to be home to planets, too. The presumed worlds are smaller than Jupiter and could be as tiny as Pluto, new observations suggest.
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There is another election this week. The issues are not war, taxes, morals or international credibility. They are microbes, diseases, data and international credibility.
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Evidence is mounting that    the time-weathered red planet was once a warm and water-rich world. And a Mars    awash with water gives rise to that globe possibly being fit for habitation    in its past - and perhaps a distant dwelling for life today.
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SAN DIEGO&nbsp;-- Astronomers are highly confident that they've taken the first photograph of a planet outside our solar system.
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Rocky planets with conditions suitable for life may be more common than previously thought, a study finds
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Lots of places to escape to Would-be galactic colonists got a boost this week when a paper in the journal Science suggested that Earth-like planets might be more common than previously thought.â¦
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Another day, another gas giant Astronomers have found an extrasolar planet that is perfectly positioned to allow a decent analysis of its atmosphere.â¦