Issues
Physics Update
From the Editor
Letters
Search and Discovery
An Array of Cherenkov Telescopes Yields the First Resolved Image of a Celestial Gamma-Ray Source
Imaging with TeV photons provides the most direct evidence yet that cosmic rays originate in the shock fronts of supernova remnants.
New Study Correlates Mantle Melting to Mid-Ocean Ridge Segments
Variations found in the composition along a stretch of exposed mantle on the Arabian peninsula offer fresh evidence for the link between the length scale of ridge segments and Earth’s convection process.
Issues and Events
R&D Budget Brings Modest Increases to Most Civilian R&D; NSF Takes a Hit
As in the past three US budgets, defense and homeland security received most of the federal R&D dollars. With the federal deficit at $413 billion and climbing, most budget experts expect science funding to get worse before it gets better.
Articles
God’s Rays
The physicist’s quest for understanding is not the only way to raise the level of our existence and give our lives meaning.
Computational Science Demands a New Paradigm
The field has reached a threshold at which better organization becomes crucial. New methods of verifying and validating complex codes are mandatory if computational science is to fulfill its promise for science and society.
How to Popularize Physics
An outreach effort can combine an eager audience, a favorite topic, and a preferred medium of expression to achieve a wonderful teaching experience.