Pluto Still a Mystery 75 Years Later
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It's been 75 years since the discovery of Pluto, but it remains a mystery. Perhaps in another 10 years some of its secrets will be revealed when a space probe gets close enough for a good look.
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By KHALID MOSS  Although I'd been warned by some bushyhaired astrophysicist on The Today Show, the news late last month hit me like a runaway meteorite. Astronomers say Pluto is no longer a planet.   I guess when it comes to planetoids, size does matter.
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Fifty years after the launch of Sputnik  kicked off the Space Age, an ultra-modern probe heading for Pluto is using retro Sputnik-like tones to communicate with Earth.
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While scientists debated Pluto's fate last summer, Fisher-Price executives were forced into a debate of their own: What would become of their Planet Heroes action figures if Pluto lost its planet status?
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The first precise measurement of a failed star known as a brown dwarf finds the object is much more massive than theorists expected. The result challenges what astronomers&nbsp;assumed about these strange things, which straddle the mass range between huge planets and normal stars.
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More than half a century has not proved sufficient to solve the mystery of Dean Martin and Jerry Lewis, nor to diminish their appeal.
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The dwarf planet formerly known as Xena received a new name, while Pluto was given a number to reflect the loss of its status as a planet.
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[World News]: Washington, Nov 4 : An international team of astronomers has suceeded solving the 100 yearl old mystery about the origin of the cosmic rays by producing the first ever image of an astronomical object using high energy gamma rays.
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A study of Plutoâs bright frosts suggests that the way the planet cools down is rapid and disorganised. The results were presented at the European Planetary Science Congress in Berlin.Plutoâs surface is bright because its atmosphere periodically condenses onto the surface.
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An astronomer at Penn State University is not certain whether the latest discovery in outer space is a planet or a failed star.
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It's "all systems go" for one of the most ambitious physics experiments ever attempted. After more than 40 years of methodical planning and four months of intense troubleshooting, NASA's Gravity Probe B spacecraft has begun its search for a bizarre prediction of Einstein's relativity.
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This is the second article in a series of four articles each with a separate explanation of different quantum phenomena. Each article is a piece of a mosaic, so every one is needed to understand the final explanation of the quantum astronomy experiment we propose, possibly using the Allen Array Telescope and the narrow-band radio-wave detectors being build by the SETI Institute and the University of California, Berkeley.
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VIENNA -- The UN nuclear watchdog agency has found that Taiwan's experiments with plutonium extended to the mid-1980s, diplomats said yesterday, uncovering a key detail about the country's now-abandoned nuclear weapons program.
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The IAU's recent decision to retain Pluto as a planet was a political attempt to catch up with two trends: the recent discoveries by Mike Brown and his colleagues of new planetary objects, and a growing unease about Pluto's place in the classical notion of what a planet is. Whether or not they made the right decision about Pluto is rather pointless, as there are certainly more important things astronomers have to worry about. Although it is controversial amongst astronomers. And think of those poor astrologers and their horoscopes: "Your Libra is in the House of Quaoar. So, um, that makes you very cold and distant?"  If Pluto gets called a Planet or a Pluton or a Salami Sandwich in children's textbooks just isn't that important in the larger scheme of things. So certainly, the IAU got it right, for now: just let popular and historical notions hold sway. However, the IAU did not address a third trend on the horizon: we are beginning to discover planets outside of our solar system. This means our traditional notion of what a planet is and isn't is about to be challenged in a whole new bunch of ways that Pluto and Mike Brown could never muster. We are going to be exposed to a whole new cornucopia of exotic objects orbiting other stars in the next few decades. In this regard, the IAU's recent Solar Sytem-centric and politically rendered decisions just don't cut it.
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By ALICIA CHANG  LOS ANGELES - A distant, icy rock whose discovery shook up the solar system and led to Pluto's planetary demise has been given a name: Eris.
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By Eric Hand  ST. LOUIS - A decade ago, NASA's Galileo probe made a stupendous discovery: A vast, warm, salty ocean - bigger than all of Earth's put together - under the icy crust of Europa, one of Jupiter's four large moons.  Ever since, William McKinnon has been chafing to go back.
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When New Horizons, NASA's Pluto-bound spacecraft, swings by Jupiter on Feb.