Instead, the study authors used the Atacama Large Millimeter-submillimeter Array (ALMA) to look for the presence of stable sulfur and chlorine isotopes in Io's thin, tenuous atmosphere.

Astronomers have discovered that sulfur may be a key to helping us narrow down our search for life on other planets. It's not that sulfur is a great indication that a planet is inhabited.

Three ingredients are needed for life as we know it: liquid water; essential elements like carbon, nitrogen, and sulfur ... Jupiter Io Europa Ganymede Beneath Europa's ocean lies a mantle of ...

Three key ingredients are needed for life as we know it: essential elements like carbon, nitrogen, and sulfur; an energy source, and liquid water. Though Europa is only the size of our own moon ...