George Blumenthal is an American professor and astronomer and the Acting Chancellor of the University of California, Santa Cruz. A professor giving a lecture The meaning of the word professor (Latin: one who claims publicly to be an expert) varies. ... Radio telescopes are among many different tools used by astronomers Astronomy (Greek: αστρονομία = άστρον + νόμος, astronomia = astron + nomos, literally, law of the stars) is the science of celestial objects (such as stars, planets, comets, and galaxies) and phenomena that originate outside the Earths atmosphere (such as auroras and cosmic background radiation). ... A Chancellor is the head of a university. ... The University of California, Santa Cruz, also known as UCSC or UC Santa Cruz, is one of the ten campuses of the University of California. ...

He is known particularly for his work with Santa Cruz colleagues Sandra M. Faber and Joel Primack and with Martin Rees of Cambridge University on dark matter. Their theory of cold dark matter, developed in the 1980s, remains the standard explanation of the formation of galaxies and galaxy clusters. Blumenthal has also worked in many other areas of astrophysics, including the study of gamma-ray bursts, accretion disks, active galaxies, and the microwave background radiation left by the big bang. Sandra M. Faber is a professor of Astronomy and Astrophysics at the University of California, Santa Cruz and works at the Lick Observatory. ... Joel Primack is a professor of Astronomy and Astrophysics at the University of California, Santa Cruz and works at the Lick Observatory. ... The Right Honourable Martin John Rees, Baron Rees of Ludlow, FRS (born 23 June 1942) is a professor of astronomy. ... The University of Cambridge is the second-oldest university in the English-speaking world, with one of the most selective sets of entry requirements in the United Kingdom. ... In astrophysics, dark matter refers to matter that does not emit or reflect enough electromagnetic radiation (such as light, x-rays and so on) to be detected directly, but whose presence may be inferred from its gravitational effects on visible matter. ... Cold dark matter (or CDM) is a refinement of the big bang theory that contains the additional assumption that most of the matter in the Universe consists of material which cannot be observed by its electromagnetic radiation and hence is dark while at the same time the particles making up... This article is about a celestial body. ... ... Optical afterglow of gamma ray burst GRB-990123 (the bright dot within the white square and in the enlarged cutout) on 23 January 1999. ... An accretion disc (or accretion disk) is a structure formed by material falling into a gravitational source. ... An active galaxy is a galaxy where a significant fraction of the energy output is not emitted by the normal components of a galaxy: stars, dust and interstellar gas. ... According to the Big Bang theory, the universe emerged from an extremely dense and hot state (bottom). ...

Before becoming Acting Chancellor, Blumenthal was the chair of the UC Santa Cruz Academic Senate from 2001 to 2003 and then served one year each as Vice Chair and Chair of the University of California Academic Senate. The Academic Senate (in latin Senatus Academicus) is the supreme academic body for an Ancient university in Scotland and its members are all the Professors of each university, along with certain senior Readers, and a number of Senior Lecturers and Lecturers, and students representatives. ... The University of California (UC) is a public university system in the state of California. ...

He received a B.S. in physics from the University of Wisconsin-Milwaukee and a Ph.D. in physics from the University of California, San Diego. A Bachelor of Science (B.S., B.Sc. ... The first few hydrogen atom electron orbitals shown as cross-sections with color-coded probability density. ... Mitchell Hall at the University of Wisconsin-Milwaukee The University of Wisconsin–Milwaukee is a public university located in Milwaukee, Wisconsin. ... Doctor of Philosophy (Ph. ... The University of California, San Diego (popularly known as UCSD) is a public, coeducational university located in La Jolla, California. ...

External links

• UCSC Chancellor's web site
• research web site