No. 172,  A New Day Dawns, by Dale Gary: true microwave imaging spectroscopy at the Expanded Owens Valley Solar Array.

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

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.