Rogue Black Holes May Roam the Milky Way

(PhysOrg.com) -- It sounds like the plot of a sci-fi movie: rogue black holes roaming our galaxy, threatening to swallow anything that gets too close. In fact, new calculations by Ryan O'Leary and Avi Loeb (Harvard-Smithsonian ...

Racially diverse US neighborhoods undergoing re-segregation

Racially segregated neighborhoods in the United States persist for many social and economic reasons. Yet new research shows that many racially diverse neighborhoods—seemingly a sign of progress in racial equality - are, ...

Toxic neighborhoods and social mobility

How much does growing up in a healthy and cohesive community, or lack thereof, contribute to later long-term economic and social success in adulthood? Quite a lot, it would seem. Two Harvard sociologists, Robert Manduca and ...

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