Dear Friends.

I want to share some sad news.

I was diagnosed with Idiopathic Pulmonary Fibrosis (IPF) five years ago. I did not have any significant symptoms until last year. That changed dramatically in 2025 and my health has rapidly deteriorated.

I have spent the last two weeks in a Phoenix hospital undergoing exhaustive testing to determine whether I am a candidate for a lung transplant. Unfortunately, my IPF has progressed too far for a transplant.

I expect to be placed into hospice care tomorrow and will probably be gone within a few days or less.

But I cannot complain. I have had a marvelous life of eclipses, astronomy, a NASA career, and my wonderful wife Pat, the greatest love of my life.

I wish those I leave behind many more years of clear eclipses and awe for the heavens.

Farewell to all of you,