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A bolt out of the blue

Article Abstract:

The lightning bolts generating X-rays suggest that lightning somehow accelerates electrons to nearly the speed of light in a phenomenon called runaway breakdown. Researchers are building an array of X-ray detectors in Florida to study the processes that initiate lightning and allow it to propogate.

Author: Dwyer, Joseph R.

Publisher: Scientific American, Inc.
Publication Name: Scientific American
Subject: Science and technology
ISSN: 0036-8733
Year: 2005

Process control instruments, Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables, X-Ray Process Sensors, Usage, Electrons, Lightning, X-ray detectors

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What heated the asteroids?

Article Abstract:

Meteorite evidence suggests that high-energy impacts may have heated many asteroids in the era following their formation. It is also beloved that collisions among porous asteroids could have supplied the extra heat.

Author: Rubin, Alan E.

Publisher: Scientific American, Inc.
Publication Name: Scientific American
Subject: Science and technology
ISSN: 0036-8733
Year: 2005

Asteroids, Minor planets

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Subjects list: Research, United States

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