Science, Maths & Technology
Rosetta unexpectedly finds oxygen on comet 67P, surprising scientists
...busy re-examining the data of another close encounter with a comet, Halley, almost 30 years ago. Glimpse into the birth of the solar system But at present, there is no reason to assume that the oxygen in 67P is a one-off observation. So what does the presence of free oxygen tell us about the conditions in the solar nebula or protoplanetary disk thought to have given birth...