Technology News 16.04.2026
LIVETechnology news rolling coverageStarted: April 16, 2026, 12:00 AM EDTUpdated: April 16, 2026, 3:50 AM EDT Bathtub ring hints at ancient Martian ocean contours, scientists say April 16, 2026, 3:02 AM EDT. New data from NASA's Mars Global Surveyor and other missions strengthen the case that Mars hosted an ancient northern ocean. Researchers identify a ring-like boundary-a Martian **bathtub ring**-that may mark a coastline and define a broad **coastal shelf**. Lead author Abdallah Zaki of the University of Texas says rivers dumped sediment, waves rearranged it, and sea levels rose and fell as the ocean fluctuated. The study, published in