OBSERVATORY

Penguins Harmed by Tracking Bands, Study Finds

By SINDYA N. BHANOO

Benoit Gineste, CNRS / IPEV

King penguins with tags on their flippers had fewer chicks and a lower survival rate than penguins with microchips inserted under the skin.

OBSERVATORY

Four-Legged Investigators Sniff Out Wildlife Data

By SINDYA N. BHANOO

With more and more scientists using canines as assistants, an effort finds temperature and precipitation matter.

SCIENTIST AT WORK BLOG

Spider and Woolly Monkeys

By ANTHONY DI FIORE

Researchers watch a rare interspecies frolic among spider and woolly monkeys.

Agency Revokes Permit for Major Coal Mining Project

By JOHN M. BRODER

The Environmental Protection Agency said on Thursday that the mountaintop-removal project would have done unacceptable damage.

Heavy-Lift Rocket Behind Schedule

By KENNETH CHANG

The National Aeronautics and Space Administration cannot develop a heavy-lift rocket by the end of 2016 within the budget provided, the space agency told Congress this week.

• Figures on Global Climate Show 2010 Tied 2005 as the Hottest Year on Record

• California: Company’s Study Says PCBs Did Not Harm Babies

• Texas: Court Allows E.P.A. to Issue Greenhouse Permits

• Tougher Rules Urged for Offshore Drilling

• Jack Oliver, Who Proved Continental Drift, Dies at 87

• Weather Monitoring Company Turns to Greenhouse Gases

• Florida: NASA Determines Cause of Cracks