In the future, tiny robots will inspect pipes for blockages and leaks.

Dark skies have value. They are a profoundly wonderful yet highly threatened natural asset.

New risk models show nearly twice as many properties are at risk from a 100-year flood today than the government's flood maps indicate.

Hip food offerings can signal that a neighborhood is gentrifying – especially when they repackage traditional foods for wealthy white eaters.

After trying to remove street vendors from its cities for years, China is supporting them to help jump-start its economy. An urban scholar explains why other cities should do the same.

Why one city suffers significantly more deaths than another isn't always obvious. A simple experiment shows how failing to consider certain factors can point policy makers in the wrong direction.

Neighborhood characteristics like pollution from busy roads, widespread public transit use and lack of community-based health care are putting certain communities at greater risk from COVID-19.

Frederick Law Olmsted, the designer of many great North American city parks, understood that ready access to nature made cities healthier places to live.