The Daily Galaxy: Using The European Space Agency’s Herschel space telescope, astronomers in 2012 discovered that previously unseen distant galaxies are responsible for a cosmic fog of infrared radiation. The galaxies are some of the faintest and furthest objects seen by Herschel, and opened a new window on the birth of stars in the early Universe. Astronomers estimate that their are billions and billions of galaxies in the observable universe --as well as some seven trillion dwarf galaxies. The image above shows A dwarf galaxy found by MIT's Dr. Simona Vegetti and colleagues --a satellite of an elliptical galaxy almost 10 billion light-years away from Earth. The team detected it by studying how the massive elliptical galaxy, called JVAS B1938+666, serves as a gravitational lens for light from an even more distant galaxy directly behind it. Here's how astronomers breakout the visible universe within 14 billion light years: Superclusters in the visible universe = 10 million Galaxy groups in the visible universe = 25 billion Large galaxies in the visible universe = 350 billion Dwarf galaxies in the visible universe = 7 trillion Stars in the visible universe = 30 billion trillion (3x10²²) Astronomers recently realized that they may have underestimated the number ...