few days ago, we proposed you a picture of the incoming new probe developed by +NASA for the Sun observation, called IRIS. Yesterday afternoon, after a delayed launch, the Sun-watching probe has been launched in orbit with success.
This new space rocket, called Pegasus, has been dropped by a plane at around 12 km above the Pacific Ocean, about 160 km northwest of Vandenberg. After a five second freefall, the Pegasus rocket started and carried the Sun-watching, IRIS, into Earth orbit.
The +NASA engineers and scientists hope that the observations performed by IRIS will help them to understand more in details how energy and material move around the Sun.
You could find above the video of the launch :