Strange 'coral reef' deposits reveal Mars' climate history photo of the day for Sept. 28, 2026

NASA’s latest Mars imagery shows a sudden appearance of purple and pink swirls across the planet’s surface, described as strange ‘coral reef’ deposits. The swirls were captured by NASA’s Mars camera, prompting coverage that notes their vivid hue and unusual formation. EarthSky reports the red planet now shows strange swirls of purple and pink, while yourweather.co.uk calls the rocks mysterious and puzzling to NASA.

The Daily Galaxy highlights the rarity of the geological features across a vast alien landscape, and Futura remarks on a sudden violet turn at the South Pole. Experts called the visual shift unexpected, noting that typical Martian terrain lacks such vibrant colors. Space labels the deposits as ‘coral reef’ formations that could reveal climate history.

Scientists caution that the cause of the violet coloration remains uncertain; no definitive explanation is offered in current reports. The imagery raises questions about past climate conditions, but further analysis is needed to confirm any link. Further spectroscopic analysis and mapping will be required to determine mineral composition.