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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

    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?

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

    How do we calculate distances to other galaxies?

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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 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?

    What does lunar dust smell like? © NASA
    Space

    What does lunar dust smell like?

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    What’s the tallest mountain in the Solar System? © Getty Images
    Space

    What’s the tallest mountain in the Solar System?

    sunspots_0
    Everyday science

    Why are sunspots black?

    What colour is space? © Getty Images
    Space

    What colour is space?

    What would a shooting star look like if it was coming straight towards you? © Getty Images
    Space

    What would a shooting star look like if it was coming straight towards you?

    What is the largest object in the Universe?
    Space

    What is the largest known celestial body?

    How can I see Jupiter and Saturn this week? © Getty Images
    Space

    If we were to look at the Universe as a whole, what state of matter would we say it’s in?

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