Roads: helpful here, harmful there

Roads: helpful here, harmful there

Roads are the first insult to pristine natural areas — and a key to agricultural productivity in places where farming makes sense. More »

Mock meat: Fit for grilling?

Mock meat: Fit for grilling?

Soy protein: It may look like meat. Could meat be grown, cell by cell, in lab dishes. Could in vitro meat solve health and More »

Calendars: A fix needed?

Calendars: A fix needed?

A “permanent” calendar could finally answer the annual, “Uh, what day is New Year’s eve this year?” question. This calendar would place More »

Flying robots

small robotic, red and white plane on surface of water

Compared to regular airplanes, radio-controlled craft are safer, cheaper, and easier to use for observing wildlife and environmental More »

Fertilizing the ocean

Fertilizing the ocean

As Earth warms, should we try huge geoengineering projects to cool the climate? Would adding iron to fertilize ocean plants withdraw More »

Space Travel: Humans vs. Robots

Bush proposes mission to moon and Mars, but how great are the scientific payoffs of this expensive, risky adventure? Would it be More »