Missions and facilities
Launched in May 2009, Herschel has the largest mirror ever launched on an astronomical telescope
Launched on the same rocket as Herschel, Planck is surveying the entire sky to examine fluctuations in the microwave background left behind by the Big Bang
A joint Japanese-ESA project currently in the planning stage
The largest legacy survey using NASA's Spitzer Space Telescope
The largest existing survey of the sky at near-infrared (0.9-2.3 micron) wavelengths
IPHAS and VPHAS+ are imaging the Northern (IPHAS) and Southern (VPHAS+) Milky Way in visible light and Hα down to >20th magnitude.