Pluto
The icy dwarf planet Pluto undergoes dramatic seasonal changes, according to images from the Hubble Space Telescope.
The pictures from Hubble revealed changes in the brightness and the colour of Pluto’s surface.
Mike Brown, from the California Institute of Technology, suggested Pluto had the most dynamic surface of any object in the Solar System.
Hubble will provide our sharpest views of Pluto until the New Horizons probe approaches in 2015.
The researchers note that Pluto became significantly redder in a two-year period, from 2000 to 2002.
Imagine the Moon changing by that much
Professor Mike Brown, Caltech
When Hubble pictures taken in 1994 are compared with a new set of images taken in 2002 to 2003, astronomers see evidence that Pluto’s northern polar region has become brighter.
Pluto’s dynamic surface revealed by Hubble images
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