Another contributor, who posts pseudonymously as "DarkSyde", writes on the front page of Daily Kos and a blog called Unscrewing the Inscrutable. He is best known as a science writer with specific attention paid to biology, astronomy, and political issues such as creationism or climate change. In particular, DarkSyde's Hurricane Katrina diaries were widely read during the storm and in the immediate aftermath. They are included in a collection of science articles in the e-book "Kosmos: You Are Here", co-written with science fiction novelist Mark Sumner and illustrated by paleowildlife artist Carl Buell. All the contributors to "Kosmos" donated the proceeds to fund the YearlyKos convention.