ISLAMABAD   -   Scientists have theorized on the origin of the water plumes possibly erupting from Jupiter’s moon Europa. Recent research adds a new potential source to the mix. Plumes of water vapor that may be venting into space from Jupiter’s moon Europa could come from within the icy crust itself, according to new research. A model outlines a process for brine, or salt-enriched water, moving around within the moon’s shell and eventually forming pockets of water — even more concentrated with salt — that could erupt. Europa scientists have considered the possible plumes on Europa a promising way to investigate the habitability of Jupiter’s icy moon, especially since they offer the opportunity to be directly sampled by spacecraft flying through them.