No. 217, "Reflection of Coronal Global Waves," by Ines Kienreich and Hugh Hudson: a homologous series of global coronal waves reflects at a coronal-hole boundary.

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

Older Nuggets are also 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.