Sentences with phrase «contains traces of methane»

But in late March, researchers analyzing data from the European Mars Express satellite reported the planet's atmosphere contains traces of methane, a by - product of bacteria here on Earth.

Not exact matches

One of the natural products of anaerobic digestion is biogas, which typically contains between 60 to 70 percent methane, 30 to 40 percent carbon dioxide and trace amounts of other gases.