Most voters value honesty when they head to the polls, but politicians know that being too honest could be counterproductive.
There's no reason why humanity can't re-establish its moon presence while also keeping an eye on the red planet.
Sue Desmond-Hellman, CEO of the Bill & Melinda Gates Foundation, sees Twitter and Facebook as tremendous tools for encouraging communities to make healthier choices.
What will historians say about our time 250 years from now? Lawrence Summers asks this question in a thought provoking lecture about the evolution of ideas.
Two minutes of walking for every hour of sitting can lower your risk of dying by 33 percent.
The Amazon founder's space tourism company launched a surprise test flight last week, reaching 307,000 feet (93,574 meters) with its New Shepard space vehicle.