From Austria; specialised in analysis of contemporary warfare; working as author, illustrator, and book-series-editor for Helion & Co.

The Universe is: Expanding, cooling, and dark. It starts with a bang! #Cosmology Science writer, astrophysicist, science communicator & NASA columnist.

Paleontologist, liberal arts prof, science educator. Writing about science and the thing that make me smile and/or scowl.