![Cover International Sun-Earth Day](/sites/default/files/styles/crop_square_2_2_to_320px/public/images/publishing/International%20Sun-Earth%27s%20Day_0.jpg?itok=dx0PXu9C)
International Sun-Earth Day, 27 April 2001
On 27 April, the US and European space agencies celebrated the fifth anniversary of the launch of the SOHO satellite by organising the International Sun-Earth Day. The Instituto de Astrofísica de
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