Displaying results which match all of the below:
  • Crab nebula

    A supernova remnant some 6,500 light years from Earth. Probably exploding in 1054 AD

  • Galileo

    Portrait of Galileo Galilei. Oil on canvas by Domenico Tintoretto 1605-1606 from the photo gallery at the Museo Galileo, Florence, Itlay

  • Galileo and Jupiter's moons

    A short video about Galileo's first use of a telescope

  • Galileo's telescopes 1

    Galileo's telescopes in their glass case at the Institute e Museo di Storia della Scienza Firenze in Florence, Italy

  • Galileo's telescopes 2

    Galileo's telescopes alongside each other outside of their glass case at the Institute e Museo di Storia della Scienza Firenze in Florence, Italy

  • Geocentric & Heliocentric models

    A short, informative, but slightly annoying video with good visuals of the two models

  • Why telescopes in space ?

    Water vapour in the atmosphere absorbs infra red.
    Visible light makes it through the atmosphere but images are blurred
    The Earth's atmosphere blocks X-rays and gamma rays..