For the Love of Learning since 1597

Gresham College provides outstanding educational talks and videos for the public free of charge. There are over 2,500 videos available on our website. Your support will help us to encourage people's love of learning for many years to come. 

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    Early Universe

    This lecture will examine the evidence for and the significance of events that unfolded in the first few seconds after the Hot Big Bang.

    The Astronomer and the Witch: Kepler’s Mother

    In 1615 Katharina Kepler, illiterate mother of the astronomer Johannes Kepler, was accused of being a witch. At that time in Germany, there was a witch ‘craze’. Over half of the c.50,000 executions in Europe for witchcraft between 1500 and 1700 took place in Germany.

    Cosmic Vision: Space-Quakes

    When black holes merge, the world shakes. Such quakes in space-time are now detectable and indeed the detection of such gravitational waves from cosmic coalescences comprises an entirely new type of astronomy that is completely independent of light itself.

    Space Sounds: The Music of the Cosmos

    Space today is terrifyingly silent. But it wasn’t always thus: the early universe was filled with a hot plasma in which sound waves could travel. The cosmos was quivering with the aftershocks of the Big Bang.

    Cosmic Vision: Fast & Furious

    Highly energetic particles from outer space travelling at the speed of light, known as cosmic rays, originate from the sites of extreme particle acceleration in the Universe.

    Cosmic Vision: Unravelling Rainbows

    When light is dispersed into its constituent colours, it can become possible to discern rich dynamical information about an evolving system in space, for example cosmic explosions, collisions or accelerations.

    Understanding the Universe with AI

    Over the last 30 years, digital technology produced an exponential increase in astronomical data. Within our lifetime, the entirety of the visible universe will have been mapped out: we will have seen everything there is to see. The question will then be: what does it all mean?

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