This "UFO" on Mars cropped up again on Reddit's r/Skydentify, even though it was first noticed back in 2014.
![Metabunk 2020-10-19 13-01-30.jpg Metabunk 2020-10-19 13-01-30.jpg](https://www.metabunk.org/attachments/metabunk-2020-10-19-13-01-30-jpg.41859/)
![NRB_458574869EDR_F0390444NCAM00295M_.jpeg NRB_458574869EDR_F0390444NCAM00295M_.jpeg](https://www.metabunk.org/attachments/nrb_458574869edr_f0390444ncam00295m_-jpeg.41858/)
Raw Image: https://mars.nasa.gov/raw_images/182036/?site=msl
It's captioned "This image was taken by Right Navigation Camera onboard NASA's Mars rover Curiosity on Sol 688 (2014-07-14 02:06:13 UTC)"
It does not appear in previous or subsequent frames. However, this other image was taken at the same second with the Left Nav Cam:
![NLB_458574869EDR_F0390444NCAM00295M_.jpg NLB_458574869EDR_F0390444NCAM00295M_.jpg](https://www.metabunk.org/attachments/nlb_458574869edr_f0390444ncam00295m_-jpg.41860/)
https://mars.nasa.gov/raw_images/182035/?site=msl
The two images are of the same scene in the same second, suggesting that the speck is a glitch in the right camera. This left/right difference was noticed on the "whatisupinthesky" forum, nearly 4 years ago. https://ftp.whatsupinthesky.com/index.php/forum/the-planet-mars/3789-ufo-sol-688-debunked
It would be useful to close speculation here by finding similar glitches. Two somewhat similar (but different) cases have been discussed on Metabunk.
Firstly there's Debunked: Giant Bird In Flight On Mars Caught In NASA Billion Pixel View - which is just some dirt on the sensor - verifiable by the exact same "bird" showing up in multiple images, including some test shots on Earth.
Secondly there's a very old thread Lol... Chemtrailing Mars? (And other random theories), which appears to be something like a cosmic ray hit.
![Metabunk 2020-10-19 13-22-29.jpg Metabunk 2020-10-19 13-22-29.jpg](https://www.metabunk.org/attachments/metabunk-2020-10-19-13-22-29-jpg.41861/)
Spirit Panoramic Camera: Sol 584
Source: https://mars.nasa.gov/mer/gallery/all/2/p/584/2P178208022EFFAE03P2264R7M1.HTML
Raw Image: https://mars.nasa.gov/raw_images/182036/?site=msl
It's captioned "This image was taken by Right Navigation Camera onboard NASA's Mars rover Curiosity on Sol 688 (2014-07-14 02:06:13 UTC)"
It does not appear in previous or subsequent frames. However, this other image was taken at the same second with the Left Nav Cam:
https://mars.nasa.gov/raw_images/182035/?site=msl
The two images are of the same scene in the same second, suggesting that the speck is a glitch in the right camera. This left/right difference was noticed on the "whatisupinthesky" forum, nearly 4 years ago. https://ftp.whatsupinthesky.com/index.php/forum/the-planet-mars/3789-ufo-sol-688-debunked
It would be useful to close speculation here by finding similar glitches. Two somewhat similar (but different) cases have been discussed on Metabunk.
Firstly there's Debunked: Giant Bird In Flight On Mars Caught In NASA Billion Pixel View - which is just some dirt on the sensor - verifiable by the exact same "bird" showing up in multiple images, including some test shots on Earth.
Secondly there's a very old thread Lol... Chemtrailing Mars? (And other random theories), which appears to be something like a cosmic ray hit.
Spirit Panoramic Camera: Sol 584
Source: https://mars.nasa.gov/mer/gallery/all/2/p/584/2P178208022EFFAE03P2264R7M1.HTML
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