Many plastics can by recycled - but the plastic recycling infrastructure is flawed.
Debit cards may be more efficient, but do little about the problems caused by loan obligations.
Can earmarks, or "pork-barrel spending," solve the crisis in passing spending bills in Congress?
3D-printed firearms may pose a threat to the people who try to make and use them.
These seven charts show how the world has become a much better place compared to just a few decades ago.
If China's successes continue to accumulate, could the United States find itself engaged in a new space race?
Editing plant genes can dramatically speed the process of improving crops.
What if your ability to feed yourself was dependent on a process that made a mistake 20 percent of the time?
How do you pursue a goal that may be decades - or a lifetime - away? Scientists are masters, with a few ideas to share.
Our new understanding of self-control provides lessons for sticking with those New Year's resolutions.