The Solar System: The Search for Planet X

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In 1781, William Herschel became the first man in history to discover a new planet. As a result, the scale of the Solar System doubled at a stroke, and the cosy familiarity all changed. No-one could be certain any more just where our Solar System’s outer boundaries might lie and the search for “Planet X” was on…

This is a part of the lecture series, The Solar System: Our Local Neighbourhood in Space.

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This event was on Fri, 04 Feb 1994


Professor Heather Couper

Professor of Astronomy

Heather Couper was the Gresham Professor of Astronomy between 1993 and 1996.

After studying Astrophysics at Oxford University, Professor Couper ran the Greenwich Planetarium, and...

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