Space yacht will be first craft to travel on 'solar waves' as it sets sail for Venus

"The square shaped sail is equipped with thin-film solar cells and will use resistance created by the Sun's energy in much the same way as wind propels a yacht through water. This will provide it with enough thrust to hover and rotate.

'It is a hybrid technology of electricity and pressure', Japanese Space Agency expert Yuichi Tsuda said."

Read more: http://www.dailymail.co.uk/sciencetech/article-1269478/Space-yacht-craft-travel-solar-waves-sets-sail-Venus.html