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    General map of telegraph lines between Europe, India, Australia and China by Oriental telegraph company

    Charles Todd and Australia's Overland Telegraph Line

    In this blog we explore the remarkable life of Charles Todd, a Greenwich astronomer who championed Australia's Overland Telegraph Line
    Historic photograph showing an astronomer peering into the eyepiece of the Great Equatorial Telescope at the Royal Observatory. Another astronomer is taking notes to the left

    History of the Great Equatorial Telescope

    The Great Equatorial Telescope at the Royal Observatory kept Britain at the forefront of astrophysics and greatly expanded our knowledge of stars

    The Heavens and their Story

    In this blog we look at a practical astronomical work written by the husband and wife team of Walter and Annie Maunder. The Maunders worked in the Solar Department of the Royal Observatory Greenwich in the early 1890s.
    Image of blue round planet which is Uranus, with a blue ring around it

    The Discovery of Uranus

    Learn more about how William Herschel discovered Uranus in 1781, the first new planet that had been discovered since antiquity

    Weathervanes at the Royal Observatory Greenwich

    Discover the history and stories behind the Royal Observatory's weathervanes

    What was the Christmas Star?

    From comets to supernova explosions, discover some of the theories about the Star of Bethlehem

    Mathematics, navigation and empire: reassessing John Dee’s legacy

    John Dee (1527-1609) was a philosopher and scholar whose work during the Tudor period has been overshadowed by his alleged sorcerous and occultist activities. He is best known for having conversations with angels through his scryer Edward Kelley's interests in astrology, alchemy, calendar reform and suggesting the date for Queen Elizabeth's coronation. What John Dee may not be as well known for is his influence on English navigation and being the first person to coin the term 'British Empire'.

    Mapping the Moon: the story of the Wilkins Moon map

    Find out more about one of the most detailed maps of the Moon ever created.

    1919 solar eclipse

    Learn more about the 1919 solar eclipse. A solar eclipse is a spectacular event in of itself, but this event was particularly important both for scientists of the time and of the present.