I'm assuming you say this because without phosphorous there is no adinosine triphoshate, and without that it's hard to imagine how life could function without the ATP energy pathway in both animal repiration and photosynthesis. Right? I have to admit I feel like I'm standing all the way up on my mental tiptoes to have even a tentative grasp on some of the basics of molecular biology and am completely beyond my element to try to imagine alternate pathways where key elements found here on Earth might be rare or non-existent on other planets which might otherwise be suitable to host Earth-like life. Anyway, you obviously piqued my curiosity. Do you have any more to say on the subject?
Too early to tell if that's actually the case. The sample size is very small, and there could be other factors at work. It's interesting though.
Only two studies, so not too much credence can be placed in the assumption about alien life, but they do raise some rather interesting questions and a need for further study.
Um... what if alien life doesn’t have DNA and the need for phosphorus?