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The Struggles to Find the Ninth Planet
Exploring the Solar System: Uranus, Neptune & Pluto, at Amazon UK for œ8.40
Amazon.co.uk A Glance Pluto (First Books - The Solar System Series)
Amazon.co.uk A Glance A Double Planet Pluto and Charon (Isaac Asimov's New Library of the Universe)
Planet lovers campaign to save Pluto Express - 28/07/00
Pluto dismissed as lump of ice - 27/01/01
Pluto's mysterious streak mapped - 02/02/01
Pluto Flight Plan Trimmed To Save Time, Money and Fuel - 21/02/02
Scientists plan Pluto flyby - 26/02/02
Scientists clamor for Pluto, Europa missions - 13/07/02
Pluto's moon lines up for science - 27/07/05
Farewell Pluto? - 02/08/05
Hubble reveals new map of Pluto - 12/09/05
Two new moons found around Pluto - 01/11/05
Pluto moon 'has no atmosphere' - 07/01/06
The girl who named a planet - 13/01/06
Pluto mission ready for lift-off - 16/01/06
Mission guide: New Horizons - 17/01/06
Pluto probe launches from Florida - 19/01/06
Pluto's moon no longer an only child - 22/02/06
Pluto’s newfound moons are all in the family - 10/03/06 Similarity in color points to common origin, astronomers say
Crunch time for Planet Pluto - 20/06/06 For the first time, the International Astronomical Union will be officially defining the word "planet"
Nix and Hydra join Pluto's family - 22/06/06
Pluto on the chopping block - 14/08/06 Astronomers meet to define 'planet'
Proposal would increase planets from 9 to 12 - 16/08/06 A planet is now any round object larger than 800 kilometers. Earth's moon would not qualify because the two bodies' common center of gravity lies below the surface of the Earth
Planets plan boosts tally to 12 - 16/08/06
Pluto loses status as a planet - 24/08/06 The scientists agreed that for a celestial body to qualify as a planet: it must be in orbit around the Sun, it must be large enough that it takes on a nearly round shape, it has cleared its orbit of other objects
Pluto gets the boot - 24/08/06
Pluto vote 'hijacked' in revolt - 25/08/06 Dr Alan Stern: "It's an awful definition; it's sloppy science and it would never pass peer review"
Pluto status suffers another blow - 14/06/07
Pluto Now Called a Plutoid - 11/06/08
The lower atmosphere of Pluto revealed - 02/03/09
New Horizons Crosses a Threshold: Closer to Pluto than Earth - 30/12/09
Pluto's dynamic surface revealed by Hubble images - 05/02/10