Retrospections

  • Earthly Endgames
    If Earth's place and position have no better observer than an astronomer, then its future has no better forecasters than a paleontologist and astronomer familiar with how we got here. Paleontologist Peter Ward and astronomer Donald Brownlee's new book shows how astrobiology will change
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  • Remembrance
    In Memory of the Crew of the Space Shuttle Columbia

    "[To their] courage and daring and idealism..." Presidential statement, February 1, 2003
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  • Meteoric Image Pack
    Few night-sky events engage one's fascination like the chance streaks of meteoric lights. This week's selected image gallery displays some of the most memorable and important astrobiological events ever captured on film.
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  • 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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  • 2002 in Astrobiology Imagery
    2002 did not disappoint those seeking visual evidence for the prerequisites to life elsewhere--whether in Martian canyons, the atmosphere of Saturn's moon, or the distant perspective of galactic clusters containing billions of unexplored stars.
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  • Anybody Out There? Part II
    Famed neurologist Oliver Sacks is the author of many books, including "The Man Who Mistook His Wife for a Hat" and "Uncle Tungsten". In this second of a two-part essay on astrobiology, Dr. Sacks muses on the possibility of life on other worlds.
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  • End of an Era, Dawn of Another?
    Thirty years ago today, the astronauts of Apollo 17 began the final human visit to the Moon. Relive the drama and majesty of the voyage by viewing the Apollo 17 Anniversary Commemorative Visualization. And learn how scientists and space agencies around the world are gearing
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  • Anybody Out There? Part I
    Renowned neurologist Oliver Sacks is the author of many books, including "The Man Who Mistook His Wife for a Hat" and "Uncle Tungsten". In this first of a two-part essay on astrobiology, Dr. Sacks discusses his early fascination with the possibility of
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  • Esperamos que alienígenas sejam muito mais espertos que nós. Não só eles possuirão a sabedoria de eras, mas viajarão a uma velocidade de empenamento, terão a habilidade de transformar (ou destruir) planetas inteiros e sua civilização se espalhará pelas galáxias.
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  • Solar Spectacular
    Prominent solar activity noted from southern pole of sun.
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