To learn more about the minerals and surface processes on Mercury, instruments aboard NASA’s MESSENGER spacecraft have been collecting surface measurements since MESSENGER entered Mercury orbit on March 17, 2011. via NASA http://ift.tt/1zeU37k

The brilliant tapestry of young stars flaring to life resemble a glittering fireworks display in the 25th anniversary NASA Hubble Space Telescope image, released to commemorate a quarter century of exploring the solar system and beyond since its launch on April 24, 1990. via NASA http://ift.tt/1HqPKbC

NASA astronaut Scott Kelly, currently on a one-year mission on the International Space Station, posted this image of the successful capture of the SpaceX Dragon spacecraft with the space station’s robotic arm. via NASA http://ift.tt/1Jnghnr