Bright lights, big mystery: the brightest flash ever seen has revealed exotic celestial objects

Article Abstract:

Gamma ray flashes between December 1997 and April 1998 provided some light on long thought of mysteries on gamma rays. Scientists learned with the burst that such phenomena do not only come from our galaxy and that current models on such bursts may not adequately explain their nature.

Column, Study and teaching, Astrophysics, Gamma ray spectrometry, Nuclear astrophysics

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Between burb and burg

Article Abstract:

Andres Duany and his wife, planner Elizabeth Plater-Zyberk, have designed 31 of the 124 neotraditional New Urbanist towns in the US since 1980. He says urban growth is not a question; the only question is how much land newcomers will consume.

Analysis, Innovations, Biography, Design and construction, Criticism and interpretation, City planning, Urban planning, Planned communities, Urban policy, Seaside, Florida, Duany, Andres

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Climate of uncertainty

Article Abstract:

Issues concerning the extent of scientific evidence and lack of certainty about climate change are discussed. Models of climate change are examined and the decision by the US to reject the Kyoto Protocol on cutting gas emissions is assessed.

Research, United States, Prevention, Methane, Environmental policy, Climatic changes, Climate change, Greenhouse gases, Atmospheric carbon dioxide

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