Five Best Ideas of the Day: March 9

1. Take a data dive to see how a ring of suburban poverty is appearing around America’s revived cities.

By Luke Juday at the Weldon Cooper Center for Public Service at the University of Virginia

2. Don’t worry about Russia giving up on nuclear cooperation and the International Space Station.

By Lisa Saum-Manning in U.S. News & World Report

3. Scientists reverse-engineered social networks to learn how to fight HIV among homeless youth by word of mouth.

By Jessica Leber in Fast Co.Exist

4. A Pyrenees pipeline could weaken Putin’s grip on European energy.

By Paul Ames in Global Post

5. For developmentally disabled kids, the benefits of organized sports are huge.

By Darrin Steele in Quartz

The Aspen Institute is an educational and policy studies organization based in Washington, D.C.