u/Upper-Speech-7069

I'm trying to find this podcast I listened to quite a few years ago. It dedicated an episode to each planet (and maybe the moon and other celestial bodies). The narrator was a man, and I have it in my head that he once worked for NASA? I think he was the only host - don't recall any interviews. He had a beautifully lyrical way of talking about the subject of each podcast e.g. I recall one of the episodes referred to Venus as Earth's doomed twin.

There may have been a number of seasons under the same title. My searches have found similar types of podcasts but they're not the right one.

Just to add - I listened to this before COVID, if that helps narrow it down.

It was so good. Please help me find it! Thank you.