Issue # 229 _ March 2015
S&T Policy
Science
ASTRONOMY

Danger nearby
Brazilian research on nearby asteroids could help estimate the risk of collisions with Earth
By Igor ZolnerkevicPHYSICS

Sun in the Laboratory
Researchers develop model of luminous atmospheric phenomenon using soap bubbles and a laser pointer
By Marcos PivettaPlanetary Cartography

Electronic view
Mathematical tools aid automatic identification of craters and whirlwinds on Mercury and Mars
By Pablo NogueiraOBITUARY

Passion for physics and photography
Alejandro Szanto Toledo helped train a generation of nuclear physicists in Brazil
By RedaçãoECOLOGY

Living in freedom
Agoutis raised in captivity are adapting to forest life and breeding
By Rodrigo de Oliveira AndradeGenetics

Attack in the Dark of Night
Melanin fragments formed hours after sun exposure may damage DNA and cause skin cancer
By Carlos FioravantiTechnology
COMPUTER ENGINEERING

Approach simulator
Equipment for virtual training of guards, developed by a small company, is sold to Brink's
By Marcos de OliveiraBiophysics

Two in one
Device uses ultrasound and laser simultaneously to rehabilitate arthritis patients
By Yuri Vasconcelos