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    1. Home
    2. Dr Alastair Gunn
    Alastair Gunn

    Dr Alastair Gunn

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    Alastair is a radio astronomer at the Jodrell Bank Centre for Astrophysics at the University of Manchester.

    Recent articles by Dr Alastair Gunn

    The Universe has an average colour – and it’s called cosmic latte © Getty Images
    Space

    What is the average colour of the Universe?

    The Earth’s rotation is changing speed: should we be worried? © Getty Images
    Planet Earth

    The Earth’s rotation is changing speed: should we be worried?

    Do the Sun’s rays get further apart from each other over distance? © Getty Images
    Space

    Do the Sun’s rays get further apart from each other over distance?

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    Does anyone control where satellites are launched into space? © Getty Images
    Space

    Does anyone control where satellites are launched into space?

    If humans don't finish it, when will the world actually end? © Getty Images
    Space

    If humans don’t finish it, when will the world actually end?

    Is the weight of the Earth changing? © Getty Images
    Planet Earth

    Is the weight of the Earth changing?

    How do we know the Milky Way is a spiral galaxy? © Getty Images
    Space

    How do we know the Milky Way is a spiral galaxy?

    Can a planet orbit backwards compared to the other planets in a solar system? © Alamy
    Space

    Can a planet orbit backwards compared to the other planets in a solar system?

    Could there be fossils on Mars? © Dan Bright
    Space

    Could there be fossils on Mars?

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    The Allende meteorite, a slice of which is seen here, contains nine minerals never seen on Earth, including panguite © NASA
    Space

    How can we tell that a meteorite has come from a particular planet?

    How do we calculate distances to other galaxies? © NASA/Hubble Space Telescope
    Space

    How do we calculate distances to other galaxies?

    How did Mars lose its atmosphere? © Getty Images
    Space

    How did Mars lose its atmosphere?

    How many stars are in the Milky Way? © Getty Images
    Space

    How many stars are in the Milky Way?

    Could you walk on a neutron star? © Getty Images
    Space

    Why is a neutron star so heavy?

    How big would Jupiter be if it were stripped of all its gases? © Getty Images
    Space

    How big would Jupiter be if it were stripped of all its gases?

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