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Science News for April 28, 2005


'Wonderful' star reveals its hot nature

The Chandra X-ray Observatory has observed an X-ray outburst from the highly evolved red giant star Mira A, revealing a bridge of hot matter streaming between it and its companion white dwarf. The detection provides insights into interactions between binary systems, including those with a collapsed star.

SourceChandra X-ray Center·JournalThe Astrophysical Journal Letters·DateApr 28, 2005

The state of river restoration in the US

Researchers from eight universities and conservation groups compiled a comprehensive database on nationwide river restoration projects, analyzing over 37,000 current projects. The study found that most projects were implemented in the Pacific Northwest or Chesapeake Bay watershed and had median costs of $57,000 in Georgia.

SourceUniversity of Georgia·JournalScience·DateApr 28, 2005

River restoration field booms, matures

The river restoration field has matured into a science, with the nation's first comprehensive database of projects documenting trends and progress. Key findings include exponential growth in restoration efforts, with $14-15 billion invested since 1990, and a need for consistent monitoring to improve future efforts.

SourceAmerican Rivers·JournalScience·DateApr 28, 2005

Lower vaccination rates put children at risk

A study found that 35% of children using complementary alternative medicines (CAM) had lower vaccination rates, while 8.9% were unvaccinated for diseases like measles, mumps, and rubella. Parents' misconceptions about vaccine safety can lead to adverse events and harm their children.

SourceUniversity of Alberta·JournalPEDIATRICS·DateApr 28, 2005