He is also involved in a project using one of the telescopes on the roof to look for gas escaping from the moon's surface. (sciencemag.org)
The bubbles produced by the reaction are the carbon dioxide gas escaping the water. (inspirationlaboratories.com)
They were allowed to return within 12 hours of the leak, but there are still questions about how much natural gas escaped, and whether nearby soil and water were contaminated. (insideclimatenews.org)