No. 184, "New TGFs Found in the RHESSI Data," by Thomas Gjesteland and Nikolai Ostgaard.  RHESSI has found more lightning-related gamma-ray events than any other spacecraft now. See

http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/New_TGFs_Found_in_the_RHESSI_Data

Older Nuggets are available at
http://sprg.ssl.berkeley.edu/~tohban/wiki/index.php/RHESSI_Science_Nuggets
 (the current series, 2008-present), and at
http://sprg.ssl.berkeley.edu/~tohban/nuggets/ (the original series, 2005-2008).

We publish these at roughly two-week intervals and welcome contributions, which should be related, at least loosely, to RHESSI science.