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Southwest Research Institute


SwRI models Pluto-Charon formation scenario that mimics Earth-Moon system

Researchers at Southwest Research Institute propose a new model for the formation of Pluto and Charon, suggesting they may have originated from a giant collision similar to the Earth-Moon system. The scenario supports Pluto's active geology and possible subsurface ocean, with implications for the Kuiper Belt.

SourceSouthwest Research Institute·JournalNature Geoscience·TypeComputational simulation/modeling·DateJan 7, 2025

SwRI-led study explores risks of chemical exposure from household products

Researchers analyzed 81 common household items for chemical makeup and exposure risks. The study used advanced chromatography and machine learning methods to identify chemicals that could pose negative health effects, such as synthetic antioxidant BKF, when exposure reached a certain threshold.

SourceSouthwest Research Institute·JournalEnvironmental Science & Technology·TypeComputational simulation/modeling·DateDec 4, 2024

Juno spacecraft measures oxygen production on Jupiter’s moon, Europa

The Juno spacecraft has directly measured charged oxygen and hydrogen molecules from Europa's atmosphere, providing key constraints on the potential oxygenation of its subsurface ocean. The findings suggest that oxygen is continuously produced in the surface ice shell, with an estimated 12 kg per second, which could support habitability.

SourceSouthwest Research Institute·JournalNature Astronomy·TypeObservational study·DateMar 5, 2024

SwRI scientists identify water molecules on asteroids for the first time

Scientists detected water molecules on two asteroids, Iris and Massalia, indicating a distribution of water in our solar system that can inform searches for life beyond Earth. The discovery was made possible by using the FORCAST instrument to isolate mid-infrared spectral signatures indicative of molecular water.

SourceSouthwest Research Institute·JournalThe Planetary Science Journal·TypeObservational study·DateFeb 12, 2024

SwRI study suggests large mound structures on Kuiper belt object Arrokoth may have common origin

A new SwRI study posits that the large mounds on Kuiper Belt object Arrokoth are similar in size and shape, suggesting a common origin. This finding supports the streaming instability model of planetesimal formation, where gentle collision speeds allowed objects to accumulate and form Arrokoth.

SourceSouthwest Research Institute·JournalThe Planetary Science Journal·TypeObservational study·DateOct 3, 2023

SwRI models explain canyons on Pluto moon

Researchers used computational simulations to model Charon's internal ocean freeze and its effects on the moon's surface. The study found that the freezing of an internal ocean may have formed deep depressions along Charon's girth but was unlikely to lead to cryovolcanoes erupting with ice and water in its northern hemisphere.

SourceSouthwest Research Institute·JournalIcarus·TypeComputational simulation/modeling·DateFeb 7, 2023

SwRI investigations reveal more evidence that Mimas is a stealth ocean world

Numerical simulations suggest that Mimas' Herschel impact basin is compatible with a thinning ice shell and geologically young ocean. The results imply that the present-day ocean within Mimas must have been warming and expanding since its formation, potentially making it an emerging ocean world.

SourceSouthwest Research Institute·JournalGeophysical Research Letters·TypeComputational simulation/modeling·DateJan 31, 2023

SwRI scientist helps identify new evidence for habitability in Enceladus’s ocean

Scientists have discovered new evidence of phosphorus availability in Enceladus's ocean, making it a prime target in the search for extraterrestrial life. The discovery suggests that Enceladus's subsurface ocean is likely habitable due to its high levels of dissolved phosphorus.

SourceSouthwest Research Institute·JournalProceedings of the National Academy of Sciences·TypeComputational simulation/modeling·DateSep 19, 2022

SwRI researcher shows how elliptical craters could shed light on age of Saturn’s moons

A SwRI study examines elliptical craters on Saturn's moons Tethys and Dione, finding unique patterns that indicate the satellites' age and formation conditions. The research suggests a planetocentric impactor population, pointing to the importance of considering gravity-driven impacts when studying object ages.

SourceSouthwest Research Institute·JournalEarth and Planetary Science Letters·TypeObservational study·DateJun 21, 2022

SwRI study examines oxide growth in additively manufactured metals in sCO2 environment

A new joint study by Southwest Research Institute and Sandia National Laboratories examines the effects of supercritical carbon dioxide (sCO2) on oxide film growth on additively manufactured metals and wrought stainless steel. The study found that both types of metals showed oxide growth, but with significant differences in grain size ...

SourceSouthwest Research Institute·JournalCorrosion Science·TypeExperimental study·DateJun 13, 2022

SwRI scientists connect the dots between Galilean moon, auroral emissions on Jupiter

SwRI scientists studied particle population and auroral emissions on Jupiter, confirming a decade-old theory that electrons accelerated in both directions create the multi-spot dance of auroral footprints. The research also provided insights into the interaction between Ganymede's magnetic field and Jupiter's massive magnetosphere.

SourceSouthwest Research Institute·JournalGeophysical Research Letters·DateApr 5, 2022