- #1
Buzz Bloom
Gold Member
- 2,519
- 466
https://apod.nasa.gov/apod/ap210106.html
It sure looks like some strange life form to me.
It sure looks like some strange life form to me.
In summary, the conversation discusses a peculiar image of dark brown streaks on pinkish sand dunes on Mars, resembling trees but actually caused by sand slides. It also references a list of extraterrestrial dune fields for further information.
- #2
BillTre
Science Advisor
Gold Member
- 2,486
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Dune mysteries? --> Worm sign!
- #3
russ_watters
Mentor
- 23,161
- 10,368
I can't tell if this is a serious thread.
- #4
Jarvis323
- 1,243
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Dunes on Mars are indeed weird. Here is another cool image.
https://en.wikipedia.org/wiki/List_of_extraterrestrial_dune_fields
https://en.wikipedia.org/wiki/List_of_extraterrestrial_dune_fields
What is the "Mystery of Mars' Dunes"?
The "Mystery of Mars' Dunes" refers to the puzzling sight of dunes on the surface of Mars that do not behave as expected based on our understanding of dune formation on Earth.
What makes the dunes on Mars different from dunes on Earth?
The dunes on Mars are different from dunes on Earth in several ways. They are much larger, with some reaching heights of up to 500 feet. They also have different shapes and patterns, with some appearing to be in a star shape. Additionally, the dunes on Mars are made of different materials, such as basaltic sand and dust, whereas Earth's dunes are typically composed of quartz and other minerals.
Why are these dunes a mystery?
These dunes are a mystery because they do not behave as expected based on our current understanding of dune formation. On Earth, dunes are formed by wind blowing sand and other particles, but the atmosphere on Mars is much thinner and the wind speeds are not strong enough to create and sustain the large dunes that we see. This raises questions about how these dunes were formed and what other factors may be at play.
What are some theories about the formation of these dunes?
There are several theories about the formation of these dunes. One theory is that they were formed by ancient winds that were stronger and more frequent on Mars. Another theory suggests that the dunes were formed by the movement of frozen carbon dioxide, or dry ice, on the surface. Some scientists also believe that the dunes may be the result of a combination of different processes.
How are scientists studying these dunes?
Scientists are studying these dunes through various methods, including using images and data collected by orbiting spacecraft and rovers on the surface of Mars. They are also conducting experiments and simulations to better understand the conditions and processes that may have led to the formation of these dunes. Additionally, future missions, such as the Mars 2020 rover, will continue to gather data and provide more insights into this intriguing mystery.
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