Voyager 1's portrait of Earth. (Image credit: NASA/JPL) On February 14, 1990, Voyager was turned to take images of the Solar System. The Earth was there, the "pale blue dot" Carl Sagan christened it. Mona Evans, "Voyager 1 - Gas Giants and a Last Look Homeward"
Earth Waves at Cassini on July 19, 2013. From more than 40 countries and 30 U.S. states, people around the world shared more than 1,400 images of themselves as part of the Wave at Saturn event organized by NASA's Cassini mission. The Cassini team created this image collage as a tribute to the people of Earth. (Credit: NASA/JPL-Caltech/People of Earth)
Lava Flow on Mawson Peak, Heard Island. The images show proof of an eruption on Mawson Peak. By 2013.04.07 Mawson's steep-walled summit crater had filled, and a trickle of lava had spilled down the volcano’s southwestern flank. On April 20, the lava flow remained visible & had widened slightly just below the summit. Natural-color images were collected by the Advanced Land Imager (ALI) on the Earth Observing-1 (EO-1) satellite. (Image Credit: NASA Earth Observatory)
Earthrise . Taken from Apollo 8 on the first manned voyage around the Moon, Christmas Eve 1968. It has been called "the most influential environmental photograph ever taken." (Credit: William Anders, NASA image AS8-14-2383) Mona Evans, "Christmas in the Skies" http://www.bellaonline.com/articles/art36154.asp
Earth from orbit. The first image taken by the MSG-3 satellite, the Meteosat Second Generation-3 satellite. It's a geostationary weather satellite which was launched by ESA in July 2012. It images in both the visible and infrared ranges. http://astronomy.bellaonline.com/Site.asp
From the Kepler data we're finding new planets all the time. Many are more earthlike in size and some are in the habitable zones of their stars. This doesn't mean there is any kind of life on them. There are many other factors that could make them uninhabitable. Mona Evans, "Searching for Extrasolar Planets", http://www.bellaonline.com/articles/art66984.asp