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.

Toronto: Public figures such as United States presidential candidates Hilary Clinton and Donald Trump may have to do a lot more than just say sorry to win back public trust after a misdeed, said a York University researcher whose study on trust was published recently.

Washington: Democratic presidential candidate Hillary Clinton and Republican candidate Donald Trump are nearly tied the week after the Democratic National Convention and after a series of controversies for the Trump camp, according to the USC Dornsife / LA Times Presidential Election Daybreak Poll.

Washington: A new University of Delaware Center for Political Communication survey finds that 46% of registered voters would vote for Democratic candidate Hillary Clinton and 42% would vote for Republican candidate Donald Trump, if the presidential election were being held today. The nationally representative telephone survey, conducted on July 21-24, 2016, interviewed 1,000 adult US respondents by landline and cell phone, including 818 registered voters.

Columbus: Even though American consumers throw away about 80 billion pounds of food a year, only about half are aware that food waste is a problem. Even more, researchers have identified that most people perceive benefits to throwing food away, some of which have limited basis in fact.