Hydrogen is the most abundant gas in the Universe, and hydrogen-powered cars only emit water vapor. In principle, therefore, hydrogen could be a cheaper and cleaner fuel for our cars. But hydrogen remains too dangerous in its liquid form to take onboard enough fuel for a long journey. And so the race is on to find a way to store hydrogen at greater densities and at lower pressures.


Denis Loctier is a senior Euronews NBC science and nature correspondent. Since 2001, he has produced TV documentaries on more than 150 international research projects and covered a variety of other topics, from international politics and military conflicts to economy and tourism. He holds a double PhD degree in philology and information and communication sciences.

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