Aurora is the collective name given to the photons (light) emitted by atoms, molecules and ions that have been excited by energetic charged particles (principally electrons) travelling along magnetic field lines into the Earth's upper atmosphere. Aurora results from the interaction of the solar wind with the Earth's magnetic field.
The amazing color displays and formations are produced by the solar wind -- a stream of electrons and protons coming from the sun -- as it collides with gases in the upper atmosphere. These collisions produce electrical discharges which energize atoms of oxygen and nitrogen causing the release of various colors of light. Earth's magnetic field channels these discharges toward the poles. Variations in sunspot activity or the occurrence of so-called 'coronal holes' can often considerably enhance the auroral discharge adding to the intensity and duration of the displays.
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Zen is a school of Mahāyāna Buddhism, translated from the Chinese word 禅 Chán to Japanese. This word is in turn derived from the Sanskrit dhyāna, which means "meditation".
Zen emphasizes experiential prajńā, particularly as realized in the form of meditation, in the attainment of enlightenment. As such, it de-emphasizes theoretical knowledge in favor of direct, experiential realization through meditation and dharma practice.
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Bart Prince is an American-born architect who lives in Albuquerque, New Mexico. He is known for his organic and flowing architectural forms that are designed to harmonize with the environment. Pictured is a home he designed for Steve Skilen in Columbus Ohio. The curvilinear glass-and-copper-clad residence had to be beautiful from the air, since Steve comes in by helicopter.
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