Highlights
astrophysics
The oldest one (for the time being)
Oldest star discovered raises questions about the formation of the Universe
Cover
The poverty map
Project indicates a worsening in the quality of life in districts of São Paulo
medicine
Field-testing for medicines
Authorization for clinical tests on Brazilians grows 10% a year
Clinical analysis
On the trail of the Trypanosome
New test detects presence of antibodies of Chagas's disease in the blood