Europa's 'spider' mark hints at subsurface ocean, life; 2030 mission to confirm

• A strange, spider-like mark was discovered on Jupiter's icy moon Europa, initially by NASA's Galileo spacecraft.
• Scientists now believe this mark, named 'Dhamhan Alla', indicates movement of a subsurface ocean beneath Europa's ice.
• Research suggests the mark forms similarly to 'lake stars' on Earth, where subsurface brine rises through ice cracks.
• The presence of liquid water increases the possibility of microbial life existing on Europa.
• NASA's Europa Clipper mission, arriving in Jupiter's orbit by April 2030, will provide high-resolution images to further investigate these findings.

Why It Matters: Discovery on युरोपा hints at subsurface water, raising hopes for alien life.