A billion pixels, a billion stars - physicsworld.com
http://physicsworld.com/cws/article/indepth/2016/sep/08/a-billion-pixels-a-billion-stars
The Gaia spacecraft is conducting the most ambitious and thorough census of our galaxy ever attempted,
gathering data on 100,000 stars every hour. With the mission’s first major data release due this month,
Gerry Gilmore and Floor van Leeuwen explain how the spacecraft works and assess its likely impact on
the field of astrophysics.