Dark Ash Creeps Across Mars in Decades, ESA's Mars Express Reveals (esa.int)

• ESA's Mars Express captures rapid ash movement on Mars.
• Dark ash blanket spreads in decades, not millions of years.
• Findings suggest recent volcanic activity on Mars.

"ESA's Mars Express orbiter has observed a dark ash deposit spreading across Mars over the course of decades, a surprisingly rapid change for planetary geology. The ash likely originates from a volcanic vent, challenging previous assumptions about Martian surface dynamics."