Sir Harold Walter Kroto died on April 30, and I've been thinking a lot about him ever since.

Harry, as he preferred to called, was one of the most remarkable people I've ever known.

We met in 2013 when I was moderating a panel of Nobel laureates at the International Science and Engineering Fair in Phoenix. He was obviously smart, having co-discovered new forms of carbon called buckminsterfullerenes — or buckyballs — andsharing a Nobel prize for that work in 1996.

But he was also funny, wise, and devoted to helping the students in the room understand what science — and life — was all about.

Harry served on the Nobel panel for three years running, and in 2015 he told me he had been diagnosed with ALS, the disease that killed Lou Gehrig. I had never interviewed him for the radio, and I told my editor, Anne Gudenkauf, that he was a special individual, and we should get him recorded before his disease took away his ability to speak. She agreed, so I flew to Tallahassee for one day, went to his house, and we talked for 2 ½ hours.

At times I felt terrible, since he was clearly worn out by his disease, and talking to me was an effort. But whenever I asked if he wanted to keep going, he said yes.

When it was time to leave, he stood up, shakily, and gave me a hug.

It felt odd, and appropriate at the same time. Our discussions were more than a conversation between expert and reporter. It was one human sharing his perspective on life with another human who felt privileged to hear it.

Parts of that interview aired in a radio story I did last fall — with a headline Harry wrote to tell me he abhorred. But I've been thinking since his death about all the things he said that resonated with me — ideals I think I share.

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