| Late Proterozoic low-latitude global glaciation: the Snowball Earth | "Earth's Inner Core Is Running a Tad Faster Than the Rest of the Planet" |
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| Russia's Cosmonauts: Inside the Yuri Gagarin Training Center | Journal of Asian Earth Sciences |
NIST Reference on Constants, Units, and Uncertainty.
| Widmer, Ted 24 December 2018 | "On the Generality of the Latitudinal Gradient" |
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| Non-vertebrate Paleontology Laboratory, Texas Memorial Museum | Explanatory Supplement to the Astronomical Almanac |
| Article From their perch on the space station, astronauts have spent 20 years sharing a story about Earth as they see it from above | "Oceans and Continents: Similarities and Differences in the Mechanisms of Heat Loss" |
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| "Mantle Convection and Plate Tectonics: Toward an Integrated Physical and Chemical Theory" | Proceedings of the National Academy of Science |