How do plants breathe? When do they open and close the tiny pores on their leaves, and what does this mean for their water balance? A research team led by Marburg physicist Professor Martin Koch has ...

Bubbles merging in water can spontaneously generate electric sparks powerful enough to ignite methane, which could explain mysterious flashes of light known as will-o’-the-wisps. In bogs, swamps and ...

For scientists, though, one big mystery still remained. Although will-o’-the-wisps are not actual flames and occur at ambient temperatures, they still have to ignite somehow. The source of that ...