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What's Next for Curiosity on Mars

Scientific American contributor David Appell talks with Mars Science Lab Project leader John Grotzinger, professor of geology at Caltech, about the plans for the rover on the Martian surface

August 7, 2012 — Steve Mirsky

Unlimited Light

Researchers make pulses that travel faster than light--sort of

September 1, 2000 — David Appell

Father of Spirit and Opportunity

With the success of twin rovers on the Red Planet, Steven W. Squyres and his team are showing how to conduct robotic missions--and setting the stage for human exploration

October 1, 2004 — David Appell

Acting Locally

In curbing greenhouse gas emissions, states go it alone

June 1, 2003 — David Appell


The Kansas decision against evolutionsuggests that more scientists need to become local activists

November 1, 1999 — David Appell

Hot Words

A claim of nonhuman-induced global warming sparks debate

August 1, 2003 — David Appell

Aspirations in Science and Civics

From the carbon-nanotube lab to the corridors of Washington power, Mildred S. Dresselhaus has followed a career that combines scientific research with public service

March 1, 2002 — David Appell

The New Uncertainty Principle

For complex environmental issues, science learns to take a backseat to political precaution

January 1, 2001 — David Appell

Science to Save the World

Economist Jeffrey D. Sachs thinks the science and technology of resource-rich nations can abolish poverty, sickness and other woes of the developing world

January 1, 2003 — David Appell

Toxic Bulbs

Recycling rules vary for mercury-containing fluorescents

October 1, 2007 — David Appell

Repairs without Rivets

Carbon-fiber composites could lead to quick fixes for old bridges

November 1, 2007 — David Appell