Meteorites,Comets and Asteroids

  • Touchdown Asteroid
    Landing on an asteroid, while a thrilling ride for a science team, can be compared to liting a fly onto a splayed bullet.
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  • Planet Found Orbiting Red Giant
    A new planet has been discovered in the southern constellation, Canis Major (The Great Dog). The Jupiter-like planet orbits a Red Giant star--more than 400 light-years away and the second most distant planetary system yet.
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  • Complex Life, By Jove!
    What role did Jupiter play in the development of complex life on Earth? Understanding this question - and determining how many other Jupiter-mass planets are out there - might help us estimate the likelihood of finding life elsewhere in the galaxy.
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  • New World of Iron Rain
    Discover the remarkable new planet that has a year that lasts a terrestrial day, and rains down not water, but iron. The discovery is made possible by a planetary detection method--called a transit search--where the parent star dims as the orbitting planets pass across
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  • Water Worlds
    Italian astronomers report on a method for water detection on extrasolar planets and cometary clouds, and their shortlist of candidates with promising initial findings from the 32-meter Medicina radio telescope.
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  • Extinctions: Interview with Andrew Knoll Part II
    "Progress is a very loaded term for people who study the philosophy of biology," says Harvard's Andrew Knoll. In part II of the interview, find out the role of extinction in evolution. "...the central fact of our planet, as far as biology is
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  • Gravity’s Telescope
    Using a technique known as "gravitational microlensing", astronomers hope to find planets in Earth-like orbits around stars halfway across the galaxy.
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  • Weighing In on Other Planets
    An international team of astronomers used the Hubble Space Telescope to help make a precise measurement of the mass of a planet outside our solar system.
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  • Leonids Meteor Shower  Peaks
    This week's Leonids meteor show has the astrobiologists looking with cameras, microphones that might signal more intriguing insights into this space debris.
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  • Early Wild Success for Stardust
    The first sample return mission planned since 1972-the last moon landing-passed the asteroid Annefrank, on its way to the comet called Wild 2.
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  • The Sun Also Rises Twice
    The startling effect of twin shadows and dual sunrises would make for double-vision on the first planet found orbiting a closely-coupled binary star system.
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  • Amateur Astronomers Hunt Planet
    Enlisting help for sighting a star as it dims when a planetary candidate passes across the star's face.
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  • Water Worlds
    Italian astronomers report on a method for water detection on extrasolar planets and cometary clouds, and their shortlist of candidates with promising initial findings from the 32-meter Medicina radio telescope.
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  • Shortlisting Stars With Planetary Systems
    Markus Landgraf and European Space Agency colleagues explore the first direct evidence of dust rings in our solar system, and propose a novel way to shortlist stars with likely extrasolar planets.
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  • Pale Blue Dot?
    Italian astronomers report on possible water spectrum found on planetary system of Upsilon Andromedae, 44 light-years away.
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