I'm a professor teaching intro numerical computing, intro astronomy, astronomical data analysis, and planetary atmospheres. I study exoplanets and was the first to measure the difference between daytime and nighttime on a planet outside our solar system, among other discoveries. I founded, funded, and for three years led the initial numpy and scipy documentation project in 2007, which crowd-sourced all the help pages for both packages. I defined the thorough numpy/scipy help page format that has now been adopted and adapted by many Python packages. I've contributed bug reports to Ubuntu and, back in the days before Ubuntu, Red Hat. I was on a National Academies of Science, Engineering, and Medicine panel advising NASA and the National Science Foundation on how to move nearly all NASA-funded science work to open-source software, including changing licenses on existing software, where that is possible, requiring new software to be open, and changing code-release policies for NASA employees so they can contribute to open-source projects not hosted by NASA. These recommendations are rapidly being implemented and affect several billion dollars in granted federal funds annually. My research group produces a variety of open-source scientific packages. I advocate for and publish on Reproducible Research practices that include open-sourcing the research codes supporting published scientific claims.

--jh--