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If you recall when that airliner went missing tons of people starting scanning satellite images for debris. The resolution is simply not high enough to detect tiny little things like debri or life rafts.

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The difference is that planet.com will give a picture per day; every day.

1x1m is what they claim and if you get one image a day i recon one could use some statistical analysis and get better results.

I do recognize that it wont be easy despite that. Image all the shit that is floating around that is not a shipwreck.

The picture per day part is really cool - instead of having to look for a life raft/debris, we can look for patterns of abnormality across time. Given how large the ocean is, we have a good sense of the 'normal' distribution of images every day, so maybe we can find patterns like consistently "abnormal" images along a wind/current vector over 7 days. Individual debris may not be visible, but fields of debris may have some characteristics we can recognize.

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