Nature Contents: 20 March 2003 Volume 422 No. 6929 (excerpts)

letters to nature

Early optical emission from the gamma-ray burst of 4 October 2002
D. W. FOX, S. YOST, S. R. KULKARNI, K. TORII, T. KATO, H. YAMAOKA, M.
SAKO, F. A. HARRISON, R. SARI, P. A. PRICE, E. BERGER, A. M.
SODERBERG, S. G. DJORGOVSKI, A. J. BARTH, S. H. PRAVDO, D. A. FRAIL,
A. GAL-YAM, Y. LIPKIN, T. MAUCH, C. HARRISON & H. BUTTERY
http://info.nature.com/cgi-bin24/DM/y/eUr0BgiO60Hq0hQ0Ah

brief communications

Surveillance: Radiographic imaging with cosmic-ray muons
KONSTANTIN N. BOROZDIN, GARY E. HOGAN, CHRISTOPHER MORRIS, WILLIAM C.
PRIEDHORSKY, ALEXANDER SAUNDERS, LARRY J. SCHULTZ & MARGARET E.
TEASDALE
http://info.nature.com/cgi-bin24/DM/y/eUr0BgiO60Hq0hi0A6