The Neo-Platonic Christianity of C. S. Lewis

I shall attempt to show how Lewis’s fusion of Platonism with Christianity gives rise to his belief, metaphysically speaking, that the physical universe is not all there is but, rather, “transposes” (as he terms it) a greater non-physical or spiritual reality and is, as such, part of a divinely-ordained, orderly, and purposeful scheme of things. I shall also argue that for Lewis, epistemologically speaking, knowledge of this grand design and the place of humans therein is conveyed not through the human senses, at least as these are conventionally conceived, but, rather, through our higher reason, which is capable of objective insight into the true nature of reality. I shall conclude by contending that Lewis believes, from an ethical, social, and political point of view, that well-doing and well-being at both the individual and collective levels are attained through a combination of wisdom as to the true nature of things, the courage to act in accordance with this knowledge, the moderation of self-interest in the form of the surrender of one’s individual will to God’s, and, last but not least, justice in the form of a hierarchy of functions both within the soul and without

Paradise Retained: C. S. Lewis on the Nature of Knowledge, Reality, and Morality in Perelandra

The world-view which informs Perelandra (1943) in particular and the so-called “space trilogy” more generally, of which it is the second volume, is deeply infused with that blend of Christianity and Platonism that is the hallmark of the thought of C. S. Lewis and which I explore at some length in the companion essay to this piece in this volume, “The Neoplatonic Christianity of C. S. Lewis.” Perelandra is, I would argue, a literary rendition of some of the most important philosophical arguments in defense of Christianity mounted by Lewis in Mere Christianity and elsewhere

Active galactic nucleus feedback in clusters of galaxies

Observations made during the last ten years with the Chandra X-ray Observatory have shed much light on the cooling gas in the centers of clusters of galaxies and the role of active galactic nucleus (AGN) heating. Cooling of the hot intracluster medium in cluster centers can feed the supermassive black holes found in the nuclei of the dominant cluster galaxies leading to AGN outbursts which can reheat the gas, suppressing cooling and large amounts of star formation. AGN heating can come in the form of shocks, buoyantly rising bubbles that have been inflated by radio lobes, and the dissipation of sound waves.Comment: Refereed review article published in Chandra's First Decade of Discovery Special Feature edition of the Proceedings of the National Academy of Science

Observations of the Io plasma torus

The short wavelength spectrography on the IUE satellite was used to obtain spectra of the plasma torus near the orbit of Io about Jupiter. Three exposures of about 8 hours each taken in March and May 1979 show emission features due to SII, SIII, and OIII. The absence of features at other wavelengths permits upper limits to be other species in the torus

Observations of polar aurora on Jupiter

North-south spatial maps of Jupiter were obtained with the SWP camera in IUE observations of 10 December 1978, 19 May 1979, and 7 June 1979. Bright auroral emissions were detected from the north and south polar regions at H Ly alpha (1216 A) and in the H2 Lyman bands (1250-1608 A) on 19 May 1979; yet no enhanced polar emission was detected on the other days. The relationship between the IUE observing geometry and the geometry of the Jovian magnetosphere is discussed