Ex-Astronaut Irwin’s Condition Stabilizes

Former astronaut James B. Irwin, who suffered cardiac arrest while jogging Friday, remained in critical condition Saturday, but his vital signs stabilized, his doctor said.

Irwin, 56, was taken to Penrose Hospital, where he was initially listed in “critical and unstable” condition in the coronary intensive care unit. His physician, Dr. Richard Moothart, said Irwin’s condition had improved slightly to “critical but stable” by mid-morning Saturday, hospital spokesman Ron Gority said.