Washington: First ladies are often defined by the causes they champion, but they also play a vital role the public rarely sees, says Stacy Cordery, an expert on first families and a professor of history at Iowa State University.

Washington: Style, not substance, accounts for Donald Trump’s US Republican presidential nomination, according to a psychological analysis from the University of British Columbia.

Washington: Hillary Clinton is beginning to pull away from Donald Trump in the presidential race, according to the latest George Washington University Battleground Poll. 

Evanston: What you tweet says a lot about your politics and who you are going to vote for in this highly volatile US presidential election, according to TweetCast, an online tool developed by Northwestern University computer scientists.

  Washington: In an opinion piece on a news website recently, US President Barack Obama outlined his vision to send Americans to Mars by the year 2030s.

Delaware: A new paper by the University of Delaware’s Holly Michael and Mahfuzur Khan and colleagues, out this week in Nature Communications, reveals that overpumping of groundwater in Dhaka, Bangladesh, may have unforeseen consequences for citizens living in communities outside the city center.