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Tue Apr 6, 2021, 11:28 AM

NASA releases spectacular photo of 'rainbow' on Mars

A recent image taken by NASA’s Perseverance rover appears to show a breathtaking rainbow on Mars. The photograph has caused mass speculation online, as scientific evidence shows there shouldn’t be rainbows on Mars. On Earth, rainbows appear when sunlight meets the right atmospheric conditions, in which the light hits and reflects off of individual water droplets in the atmosphere. However, given the cold, thin, and dry atmosphere of Mars, the chances of the image being of an actual rainbow are unlikely.

... users have speculated that it could be a “dustbow,” with the reflections being caused by dust rather than water droplets. Further speculation on the site has come from a 2015 “Ask Me Anything” with NASA team members in which NASA Mars Program Office Chief Scientist Rich Zurek said it was possible that “icebows” could appear on Mars, because while there are no water droplets, snow has been observed at the Poles.

However, the most supported theory appears to be that the “rainbow” was caused by an artifact causing random rays of light entering and randomly dispersing inside the lens, similar to a “lens flare” in your typical camera. This was supported by Dave Lavery, the program executive for Solar System Exploration at NASA, who told Forbes, “Definitely not a rainbow. … It is just internal reflections in the camera lens."

https://thehill.com/changing-america/resilience/smart-cities/546655-nasa-releases-spectacular-photo-of-rainbow-on-mars

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Arrow 12 replies Author Time Post
Reply NASA releases spectacular photo of 'rainbow' on Mars (Original post)
left-of-center2012 Tuesday OP
Hortensis Tuesday #1
soothsayer Tuesday #2
lagomorph777 Tuesday #3
Darwins_Retriever Tuesday #4
Pinback Tuesday #5
Baitball Blogger Tuesday #6
left-of-center2012 Tuesday #9
Baitball Blogger Tuesday #10
malaise Tuesday #7
left-of-center2012 Tuesday #8
malaise Tuesday #11
swimboy Tuesday #12

Response to left-of-center2012 (Original post)

Tue Apr 6, 2021, 11:30 AM

1. Rainbows on Mars. Marvelous! Thanks, Left.

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Response to left-of-center2012 (Original post)

Tue Apr 6, 2021, 11:31 AM

2. Neat

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Response to left-of-center2012 (Original post)

Tue Apr 6, 2021, 11:32 AM

3. I agree with the NASA guy. Looks like lens flare.

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Response to left-of-center2012 (Original post)

Tue Apr 6, 2021, 11:46 AM

4. Actually rainbows are caused by refracted light not reflected light (NT)

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Response to left-of-center2012 (Original post)

Tue Apr 6, 2021, 11:52 AM

5. Wait. There are little green men AND a pot of gold on Mars? Sweet!

This is the DU member formerly known as klook.

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Response to left-of-center2012 (Original post)

Tue Apr 6, 2021, 11:54 AM

6. Is that evidence of water?

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Response to Baitball Blogger (Reply #6)

Tue Apr 6, 2021, 12:10 PM

9. Did you read the OP ?

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Response to left-of-center2012 (Reply #9)

Tue Apr 6, 2021, 12:15 PM

10. Nope. Running back and forth doing other things.

Will bookmark for later.

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Response to left-of-center2012 (Original post)

Tue Apr 6, 2021, 11:57 AM

7. WOW! Stunning

How do we have a rainbow on a dry planet?

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Response to malaise (Reply #7)

Tue Apr 6, 2021, 12:09 PM

8. It's in the OP

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Response to left-of-center2012 (Reply #8)

Tue Apr 6, 2021, 12:18 PM

11. I just looked at the stunning photos

My bad - fascinating

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Response to left-of-center2012 (Original post)

Tue Apr 6, 2021, 01:48 PM

12. We are everywhere!

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