Something seemingly so simple actually has big implications!  It is actually changing what we thought to be true about our solar system:

The results indicate that current ideas about how our Solar System formed may be wrong.

Researchers used Rosetta’s Rosina instrument to “sniff” the atmosphere around Comet 67P/Churyumov-Gerasimenko, as the probe trailed the icy body over a six-month period.

One of the scientists involved, Professor Kathrin Altwegg of Bern University said that the scientists involved in the study thought the result was a mistake when they first saw the data

Could this mean our earth and other planets developed differently than we thought?  Feel free to comment with your ideas.

thanks to bbc.com for the great info

thanks to esa for the pic