NASA’s Kepler Space Telescope has located the first Earth-sized exoplanet in the famed “Goldilocks’s Zone” – that is, the planet’s orbit resides in a habitable zone...
NASA’s Voyager 1 has officially crossed into interstellar space – the first spacecraft to do so! via NASA: http://www.nasa.gov/mission_pages/voyager/voyager20130912.html#.UjKSXD8yDNQ