![Seasonal changes in color or contrast on mars were once thought to indicate the presence of vegetation or water. are there still seasonal changes, and if so, why? | Astronomy.com Seasonal changes in color or contrast on mars were once thought to indicate the presence of vegetation or water. are there still seasonal changes, and if so, why? | Astronomy.com](https://astronomy.com/-/media/Images/ASYSK0218_02copy.jpg)
Seasonal changes in color or contrast on mars were once thought to indicate the presence of vegetation or water. are there still seasonal changes, and if so, why? | Astronomy.com
![Mars in natural colors with the Red Planet's north polar ice cap (3d render, elements of this image are furnished by NASA Stock Photo - Alamy Mars in natural colors with the Red Planet's north polar ice cap (3d render, elements of this image are furnished by NASA Stock Photo - Alamy](https://c8.alamy.com/comp/KYMXD0/mars-in-natural-colors-with-the-red-planets-north-polar-ice-cap-3d-KYMXD0.jpg)
Mars in natural colors with the Red Planet's north polar ice cap (3d render, elements of this image are furnished by NASA Stock Photo - Alamy
![Mars In Natural Colors With The Red Planets North Polar Ice Cap Stock Photo - Download Image Now - iStock Mars In Natural Colors With The Red Planets North Polar Ice Cap Stock Photo - Download Image Now - iStock](https://media.istockphoto.com/id/911006890/photo/mars-in-natural-colors-with-the-red-planets-north-polar-ice-cap.jpg?s=612x612&w=0&k=20&c=AHYqbxcj2_qtmIpGyPDVGYvPlQx2dxVoFH05JR5Af-8=)
Mars In Natural Colors With The Red Planets North Polar Ice Cap Stock Photo - Download Image Now - iStock
![Planet Mars photographed from London UK on 5.11.20 using R,G,B colour filters on monochrome camera and 4" refracting telescope. Martian South polar ice cap is at top of image Stock Photo - Planet Mars photographed from London UK on 5.11.20 using R,G,B colour filters on monochrome camera and 4" refracting telescope. Martian South polar ice cap is at top of image Stock Photo -](https://c8.alamy.com/comp/2D9JFPY/planet-mars-photographed-from-london-uk-on-51120-using-rgb-colour-filters-on-monochrome-camera-and-4-refracting-telescope-martian-south-polar-ice-cap-is-at-top-of-image-2D9JFPY.jpg)
Planet Mars photographed from London UK on 5.11.20 using R,G,B colour filters on monochrome camera and 4" refracting telescope. Martian South polar ice cap is at top of image Stock Photo -
![A collection of images describing the behaviour of ice and water vapour... | Download Scientific Diagram A collection of images describing the behaviour of ice and water vapour... | Download Scientific Diagram](https://www.researchgate.net/publication/279747655/figure/fig2/AS:284514099187713@1444844855191/A-collection-of-images-describing-the-behaviour-of-ice-and-water-vapour-on-Mars-a.png)
A collection of images describing the behaviour of ice and water vapour... | Download Scientific Diagram
![3d Render, Mars in Natural Colors with the Red Planet`s North Polar Ice Cap, Isolated on White Background Stock Illustration - Illustration of polar, isolated: 112966844 3d Render, Mars in Natural Colors with the Red Planet`s North Polar Ice Cap, Isolated on White Background Stock Illustration - Illustration of polar, isolated: 112966844](https://thumbs.dreamstime.com/z/neighbour-planet-mars-planet-solar-system-d-render-mars-natural-colors-red-planet-s-north-polar-ice-cap-112966844.jpg)
3d Render, Mars in Natural Colors with the Red Planet`s North Polar Ice Cap, Isolated on White Background Stock Illustration - Illustration of polar, isolated: 112966844
![Seasonal changes in color or contrast on mars were once thought to indicate the presence of vegetation or water. are there still seasonal changes, and if so, why? | Astronomy.com Seasonal changes in color or contrast on mars were once thought to indicate the presence of vegetation or water. are there still seasonal changes, and if so, why? | Astronomy.com](https://astronomy.com/-/media/Images/ASYSK0218_02copy.jpg?mw=600)
Seasonal changes in color or contrast on mars were once thought to indicate the presence of vegetation or water. are there still seasonal changes, and if so, why? | Astronomy.com
![Mars has polar ice caps that expand and contract with the seasons. I took a picture of the southern cap before it sublimates away in the Martian summer heat [OC] : r/interestingasfuck Mars has polar ice caps that expand and contract with the seasons. I took a picture of the southern cap before it sublimates away in the Martian summer heat [OC] : r/interestingasfuck](https://preview.redd.it/86imupamrzx41.jpg?auto=webp&s=324b1cbf3a9966b5fc8b4607abc967ac181889b4)
Mars has polar ice caps that expand and contract with the seasons. I took a picture of the southern cap before it sublimates away in the Martian summer heat [OC] : r/interestingasfuck
![NatGeoMaps on Twitter: "Map of the Day: This view of Mars is a mosaic comprising thousands of photographic images. The true-color map from November 2016 shows what astronauts would see approaching the NatGeoMaps on Twitter: "Map of the Day: This view of Mars is a mosaic comprising thousands of photographic images. The true-color map from November 2016 shows what astronauts would see approaching the](https://pbs.twimg.com/media/D_ntnbbXUAEd2nG.jpg:large)