Twitter’s experimental ‘Flock’ feature will let you share tweets with your closest friends
Scientists find the closest known black hole to date
GasBuddy Sponsored Search Ad Bumps Retailer’s Closest Location To Top Of List
ISS crew’s 360-degree video is the closest you’ll get to space
The Doomsday Clock is the closest to midnight since 1953
Watch Mars make its closest approach to Earth in 10 years
Sony’s psVue Is The Closest factor but To Cable television For The web