Earth and Environmental Sciences

Fifteen Eighty Four


Tag Archives: Earth and Environmental Sciences

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  • 10 Dec 2021
    Julian Caldecott

    International Mountain Day, 11 Dec 2021

    On this day we consider mountain ecosystems, peoples, wild species, water and weather, and salute their vital role in sustaining life and livelihoods. We also renew our commitment to saving montane environments from the casual abuses of lowland power and ignorance

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  • 20 Jul 2019
    Theo Gerkema

    A mirror on the Moon: 50th anniversary of the Apollo-11 mission

      In this memorable photograph (courtesy of NASA), we see astronaut Buzz Aldrin holding in his right hand a sophisticated mirror: the Laser Ranging Retro-Reflector (LR3). This mirror has now been standing on the Moon for 50 years. By sending a laser beam from the Earth to the mirror, and measuring the time it takes […]

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