The James Webb Space Telescope: Mission Overview and Status

The James Webb Space Telescope (JWST) is the scientific successor to the Hubble Space Telescope. It is a cryogenic infrared space observatory with a 25 m2 aperture (6 m class) telescope that will achieve diffraction limited angular resolution at a wavelength of 2 um. The science instrument payload includes four passively cooled near-infrared instruments providing broad- and narrow-band imagery, coronography, as well as multi-object and integral-field spectroscopy over the 0.6 < < 5.0 m spectrum. An actively cooled mid-infrared instrument provides broad-band imagery, coronography, and integral-field spectroscopy over the 5.0 < < 29 m spectrum. The JWST is being developed by NASA, in partnership with the European and Canadian Space Agencies, as a general user facility with science observations proposed by the international astronomical community in a manner similar to the Hubble Space Telescope. Technology development and mission design are complete. Construction, integration and verification testing is underway in all areas of the program. The JWST is on schedule for launch during 2021

The (32)S/(33)S abundance as a function of galactocentric radius in the Milky Way

Astration of heavy elements by the stars of the Milky Way forms a fossil record which may preserve spacial distribution of the mass function for the stars in the galaxy. Sulfur is among the last common element for which the relative abundance of its various isotopes have yet to be completely measured within our galaxy. Explosive oxygen burning in massive stars is thought to be the process which dominates sulfur production within stars. There models predict that the various isotopes (S-32, S-33, S-34) are formed in relative abundance which depend strongly upon the mass of the parent star. This relative abundance is thought to be unaffected by subsequent stellar procesing since all important sinks of sulfur destroy it without regard for isotopic form. Hence the spacial variation of the mass function (MF) can be studied by measuring the abundance variation of sulfur isotopes in the galaxy provided that the product yields for these isotopes are known accurately as a function of stellar mass

2019 Laskin Lecture Keynote Address: The U.S. Supreme Court’s Challenge to Civil Society

This keynote address was delivered at the Osgoode Hall Law School 2018 Constitutional Cases Conference by Linda Greenhouse, Pulitzer prize winner and Joseph Goldstein lecturer in Law and Knight Distinguished Journalist in Residence, Yale Law School on April 5, 2019

Justice on the Brink and the Rule of Law

Keynote address of the 29th annual Dayton Bench-Bar Conference, November 5, 2021

What Got into the Court? What Happens Next?

We are now in the midst of an amazing Supreme Court term--more than half-way through on the calendar, far short of halfway through in terms of what has yet to be decided. It\u27s been a roller-coaster term of sorts, beginning with the highly unusual early-September argument in the campaign finance case, followed by a rather quiet fall and winter, and then ending with an April sitting during which the Court will consider, in the context of the country\u27s response to terrorism, cases that are likely to go quite far to define for the modern age the meaning of citizenship and, indeed, of the rule of law

Keynote Speech at the Spring 2012 Pipeline to Power Symposium

Article published in the Michigan State Law Review

Explaining Ideological Preference Change on the U.S. Supreme Court

From the Washington University Senior Honors Thesis Abstracts (WUSHTA), Spring 2018. Published by the Office of Undergraduate Research. Joy Zalis Kiefer, Director of Undergraduate Research and Associate Dean in the College of Arts & Sciences; Lindsey Paunovich, Editor; Helen Human, Programs Manager and Assistant Dean in the College of Arts and Sciences Mentor: James Sprigg