He was the Daily Torygraph's science writer for many years, and actually not too bad until he got the idea that being able to explain other people's science (which he was tolerable at) meant that he was qualified to come up with his own.

He also, as his SFE entry notes, wrote a couple of SF novels. I read Koyama's Diamond many years ago and several parts of it have stuck in my mind for their sheer awfulness of characterisation and prose style.