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The Cosmic Background Explorer (COBE / ˈ k oʊ b i / KOH-bee), also referred to as Explorer 66, was a NASA satellite dedicated to cosmology, which operated from 1989 to 1993.Its goals were to investigate the cosmic microwave background radiation (CMB or CMBR) of the universe and provide measurements that would help shape the understanding of the cosmos.
ITEST engages students and teachers in authentic, hands-on learning experiences in science, technology, engineering, and mathematics (commonly referred to as 'STEM' or 'SET' [more common in the U.K.]). As of early 2012, the program is in its ninth year. Over 195 individual projects across 43 states have been funded. It has impacted:
1990 – FIRAS on the Cosmic Background Explorer (COBE) satellite measures the black body form of the CMB spectrum with exquisite precision, and shows that the microwave background has a nearly perfect black-body spectrum with T = 2.73 K and thereby strongly constrains the density of the intergalactic medium.
Created Date: 8/30/2012 4:52:52 PM
Background Chlorine and caustic soda are produced at chlor-alkali plants using mercury cells or the increasingly popular membrane technology that is mercury free and more energy-
COBE was launched on November 18, 1989, after a delay owing to the destruction of the Space Shuttle Challenger. After more than two years of observation and analysis, the COBE research team announced on 23 April 1992 that the satellite had detected tiny fluctuations in the CMB, a breakthrough in the study of the early universe. [ 12 ]
John Cromwell Mather (born August 7, 1946) is an American astrophysicist, cosmologist and Nobel Prize in Physics laureate for his work on the Cosmic Background Explorer Satellite (COBE) with George Smoot. This work helped cement the big-bang theory of the universe.
1 Promoting Healthy Choices: Information vs. Convenience Jessica Wisdom, Julie S. Downs and George Loewenstein Contact Information: We thank the USDA Economic Research Service and the Center for Behavioral Decision