Planetary Science

Foss Hill is the place for gatherings. Commencement, Spring Fling, baseball games, the first snow fall. They are all occasions for people to grace the grass. Some do it in the spirit of achievement and others in the name of pure, good ‘ole fashioned fun. On April 8, hundreds of Wesleyan students, faculty, staff, and local community members came together on the University green for a different reason—wonder—as a partial solar eclipse passed above them. The Astronomy Department hosted an eclipse viewing on Foss Hill and in the Van Vleck Observatory in partnership with the Russell Library. Organizers passed out…

Professor of Astronomy Seth Redfield was one of several collaborators who recently published the discovery of a six-planet system around a nearby bright star within the Milky Way Galaxy, according to a paper in Nature. Not only are the planets within our galaxy, but they are in perfect resonance, a rare and potentially highly important discovery for humanity’s understanding of planet formation, Redfield said. A planetary system in resonance means that the orbital periods—how long it takes a planet to complete a single orbit around its star—are in ratio with one another. Redfield said that in this case all six…

NASA’s largest telescope in space, JWST, is proving to be powerful enough to measure atmospheric chemicals on WASP-39b, a planet orbiting a star 700 light years away, and find sulfur dioxide, an element found in Earth’s ozone layer. “This is a mind-blowing demonstration of the capabilities of this telescope,” said Professor of Astronomy Seth Redfield, whose research group has been receiving early information from the telescope since its launch as a member of a JWST Early Release Science team. “There is a world that is hundreds of light years away and we can tell you how much sulfur dioxide is…

Martha “Marty” Gilmore, the George I. Seney Professor of Geology and professor of Earth and Environmental Sciences, has been awarded the 2022 Claudia J. Alexander Prize from the Division for Planetary Sciences of the American Astronomical Society (AAS) for her study of Venus’ geology. Gilmore is a Science Team Member on the DAVINCI and VERITAS missions to Venus, and the principal investigator of a Venus Flagship Mission Concept Study for the Planetary Decadal Survey. Gilmore’s work has “helped usher in a new decade of exploration of Venus with the selection of two new NASA Venus missions,” according to the AAS.…

Gallery: Wesleyan, Local Communities Flock to Foss Hill for Eclipse

Wesleyan Professor Collaborates on Discovery of Six Planets

Space Telescope Measures Chemicals in Planet’s Atmosphere

Martha Gilmore Wins Claudia J. Alexander Award