Corn Seeds Affected by Heavy Cosmic Ray Particles

Science  12 Jul 1963:
Vol. 141, Issue 3576, pp. 158-160
DOI: 10.1126/science.141.3576.158


Corn seeds of a special genetic stock were recovered from two satellite flights and the plants grown from them were examined for abnor malities. Some evidence for a slight increase in chromosomal deletions was observed, which was predicted from the flux of heavy cosmic ray primary particles. Nothing unexpected was observed.