I first encountered Sagan through his amazing TV series, Cosmos. I watched it as a child in the 1980s, and re-watched it while writing Phoenix. It was one of my biggest inspirations. Apparently I'm not the only one who feels that way. Professor Brian Cox has said it meant a lot to him too – so if you liked his Wonders Of The Universe, or if you're at all interested in stars, galaxies and space, you should definitely watch Cosmos! It's all up on YouTube: here's the first episode.
And here's a very silly but entertaining song that uses some of Sagan's quotes from the series – it became an internet phenomenon, and is a bit of a guilty pleasure for me! But the space imagery in it goes to the heart of what I was trying to do in Phoenix, so I hope you enjoy it too...