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The are blogs for authors, editors, and the broader research community to share thoughts and discuss the context around the latest in research. To keep you up to date, we're starting a new series here on The Source where we'll highlight some of the interesting and diverse articles you can find on the Communities. Read on for our latest round-up.

(Above: a treehopper nymph; Credit: Cera Fisher and Annette Evans)

We have some fascinating posts for our last Nature Research Communities round-up of the year¡ªfrom the rise in exposure to radioactive radon gas to a look back at 35 years of HIV research. Check out the links below, and be sure to join in on the conversation in the comments of each post:

1. Read what scientists found out after conducting case studies in multiple communities.

2. Learn how a successful collaboration allowed astronomers to gain a better understanding of . 

3.

4. In this Behind the Paper article, author Cera Fisher explains how .

5. Find out why researchers think that might be the case.

6. And finally,  and .