What One Fewer Planet Means to Our Worldview
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Is Pluto a planet? The world's astronomers met in Prague last week to vote on this question, and in a sort of cosmic game of "Survivor," they voted Pluto off the solar system.
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Flat panels lead to a cleaner Earth The only thing worse than the "Wisdom of Crowds" may be the "Graffiti of Crowds."â¦
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WASHINGTON - Astronomers in the US say they&#39;ve discovered a new class of planets orbiting stars outside our solar system. The two &quot;exoplanets&quot; are small compared to earlier finds.
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Astronomers meet in Prague to define the meaning of the word planet, and to decide if Pluto really is one.
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A fabled tenth planet out beyond Neptune, often referred to as Planet X, hasn't    been found despite years of searching. But astronomers involved in the hunt    are beginning to speculate that something like Planet X will be discovered,    along with Y and Z.
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An unlikely meeting of minds on an issue of global concern.
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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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Planet-seekers who have spotted 28 new planets orbiting other stars in the past year say Earth's solar system is far from unique and there could be billions of habitable planets.
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Comment is free: Robert Goodland: My former employers, the World Bank, are damaging the planet and punishing the poor.
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These are heady times for planet hunters. During the past decade, astronomers have uncovered at least 125 confirmed planets in 98 solar systems in our corner of the Milky Way.
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Astronomers announce recent discoveries of two Earth-like planets.
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European scientists have found a planet circling a distant star that could be home to life. The planet, the first detected so far that is enough like Earth for life to develop, orbits a star called mu Arae in the southern constellation Altar.
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Understanding our impact The European Space Agency (ESA) has launched an extension of its Living Planet research programme dedicated to understanding the impact human activity has on our planet.â¦
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A University of Colorado study has embarked on demonstrating that new planets can be found with the help of an orbiting starshade. The method has been compared to building a giant pinhole camera in space.
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The 130 extrasolar planets discovered so far are in solar systems very different from our own, in which life-bearing planets like Earth are unlikely to exist. But an obscure characteristic of these planets and their stars has led astronomers to predict that our galaxy is brimming with solar systems like ours. The key to their prediction is something called metallicity.
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When civilization falls, does it make a sound? Two books about the end of worlds--and what follows
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Astronomers find a strange new world that has them pondering again the essential properties of a planet.