In the quest of more sustainable energy sources, scientists have developed ‘grassoline’ — a biofuel derived from grass that could one day power aircraft. Researchers investigated methods that can disintegrate and treat grass until it can be used as a fuel. “Due to its vast abundance, grass is the perfect source of energy,” said Way Cern Khor from Ghent University in Belgium. “Right now the amount of biofuel that can be made from grass is still limited to a few drops. The current process is very expensive, and engines should be adapted to this new kind of fuel,” researchers said. “If we can keep working on optimising this process in cooperation with the business world, we can come down on the price. And maybe in a few years we can all fly on grass!” Khor said.