Naked Astronomy

Naked Astronomy episode

Wed, 24th Apr 2013

Measuring the Universe

The Cosmic Microwave Background temperature fluctuations from the 5-year Wilkinson Microwave Anisotropy Probe data seen over the full sky. (c) NASA / WMAP Science Team

We talk to Planck Scientists at the Kavli Institute in Cambridge, and Nick James, an amateur astronomer who has set up a security camera on the side of his house to observe shooting stars. Plus we answer more of your space science questions.

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In this edition of Naked Astronomy


  • The Cosmic Microwave Background (c) NASA

    01:15 - The cosmic microwave background

    Anthony Challinor and Steven Gratton talk about the latest map of the cosmic microwave background from the Planck Space Telescope.

  • the sun (c) HappyLogolover2011@wikipedia

    09:32 - Is there a standard stationary object in the Universe?

    Many astronomers any physicists talk about objects in the Universe travelling at nearly the speed of light, for example the gas jets leaving a quasar, the matter in an accretion disk circulating around a black hole or the matter travelling away from a supernova, but my question i...

  • The Mars 3 spacecraft (c) NASA

    12:30 - The latest astronomy news

    Robert Massey from the Royal Astronomical Society gives us an update on the latest astronomy headlines.

  • The AMS detector (c) NASA

    21:35 - Dark matter on the ISS

    The AMS detector on the International Space Station may have found new evidence for the origin of dark matter.

  • Nick James's camera (c) Nick James

    25:47 - Filming shooting stars

    Nick James explains how he films shooting stars using a security camera.

  • Star trails (c) European Southern Observatory

    34:38 - Can IR filters improve a camera's function at night?

    How do I make an IR filter that blocks the visible glow of IR flash but still functions so the camera can take a picture at night?

  • Gaspra Asteroid (c) NASA

    40:30 - Did 2012 DA14 change the Earth's orbit at all?

    Did the asteroid that passed us change the Earth's orbit at all?

  • Cyanobacteria (c) Joydeep on Wikimedia commons

    42:59 - Can a planet produce its own oxygen?

    Can a planet produce its own oxygen?

  • The Planck Space Telescope (c) ESA

    47:36 - Measuring the Universe

    Anthony Challinor and Steven Gratton explain how cosmologist decode the history of the Universe from the cosmic microwave background.

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