Exploring Venus: The Hothouse Planet
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Before spaceprobes could photograph Venus up close, the second planet from the Sun was often compared to a sister world, much like the Earth. Planetary scientist, David Grinspoon, discusses with Astrobiology Magazine how that view evolved to consider the extremes encountered on the Venusian surface.
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Scientists are using the pine-forested slopes of a Mexican volcano as a test bed to see if trees could grow on a heated-up Mars, part of a vision of making the chilly and barren red planet habitable for humans one day.
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By SETH BORENSTEIN, THE ASSOCIATED PRESS  CAPE CANAVERAL, Fla.  Stargazers will get a rare triple planetary treat this weekend with Jupiter, Mercury and Mars appearing to nestle together in the pre-dawn skies.
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While the exploration of the Moon and other planets in our solar system is&nbsp;exciting, the first task for astronauts and robots alike is to actually&nbsp;get to those destinations.
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Findings in the Martian atmosphere by the European Mars Express spacecraft orbiting the red planet correspond to areas where the US Mars Odyssey spacecraft has detected possible water ice just beneath the surface.
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For the past 30 years scientists have scoured the most inhospitable environments or life. Just about everywhere they look, they find it thriving in microscopic form.
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Description: We take a trip out to Saturn&#39;s moon Titan. The Cassini space probe paid a close call to the moon this week, and sent back some pictures of the mist-covered planet that have scientists puzzled.
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NASA has been exploring space for nearly half a century, yet there's one thing we still don't know: what is the best way to explore an alien planet?
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An asteroid with a wild orbit is about to zoom by our planet. Plus: Solving the mystery of the Pioneer anomaly could take decades.... A biologist finds a chunk of space shuttle Columbia. By Amit Asaravala.
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As I write this column, I'm flying from San  Francisco to New York City for three days of meetings at the American Museum of  Natural History on bringing the latest scientific data to the public via museums  and planetariums. I look forward to working with my colleagues. I'm also eager  to gaze again at their stunning collection of fossils and to travel to distant  locations in our universe at the Rose Center and the Hayden Planetarium, the  museum's digital planetarium. ...
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Scientists say that Neptune, one of the coldest planets in the solar system, has a surprising warm spot &#151; relatively speaking. An international team of astronomers has found that Neptune's south pole is warmer than other parts of the planet.
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Early morning joggers, dog-walkers and commuters are enjoying a dazzling predawn light show in the eastern sky this week. Jupiter and Venus, the two brightest planets visible
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Future space explorers might bring back more than just pictures from their excursions -- they could mine the planets for profit. By Mark Baard.
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Uranus is not the static, boring orb once thought, new pictures of the planet by the Keck II telescope in Hawaii reveal. The sharpest photos ever of the planet from a ground-based telescope show storm clouds
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The surface of one of the brightest stars in the night sky is imaged by scientists.
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NASA's Opportunity Mars rover has come across  an interesting object&nbsp;-- perhaps a meteorite sitting out in the open at Meridiani  Planum. Initial data taken by the robot's Mini-Thermal Emission Spectrometer  (Mini-TES) is suggestive that the odd-looking rock is made of  metal.
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Astronomers using a giant telescope atop a volcano have discovered a hot spot at the tip of Saturn's south pole. The infrared images captured by the Keck I telescope at the W.M. Keck Observatory atop Mauna Kea on the Big Island suggest a warm polar vortex &#151; a large-scale weather pattern likened to a jet stream on Earth that occurs in the upper atmosphere. It's the first such hot vortex ever discovered in the solar system.