Images and Data from an Asteroid Visit
September 29, 2013 | NASA
In 2011 and 2012, NASA's Dawn spacecraft orbited the giant asteroid Vesta. This was an opportunity for researchers to get close-up observations to compare with the information they obtained from ground and satellite observations. They now have an article titled: "Dawn Reality-Checks Telescope Studies of Asteroids".
The Asteroid Sensor
April 16, 2013 | NASA
"An infrared sensor that could improve NASA's future detecting and tracking of asteroids and comets has passed a critical design test." Quoted from the NASA press release.
Disintegration of an Asteroid Images
March 11, 2014 | NASA
"NASA's Hubble Space Telescope has recorded the never-before-seen break-up of an asteroid into as many as 10 smaller pieces." Quoted from the NASA press release.