National Aeronautics and Space Administration

Marshall Space Flight Center

Hinode (Solar-B)

Hinode (Solar-B)

Solar Data Resources

The Virtual Solar Observatory (VSO) is a web portal to all available solar data.

Other places to view the latest images:

SolarMonitor

SDO Latest Images

Latest Solar Images

Helioviewer

And there's an app for that!:

Space Weather App

The Sun Now Dashboard Widget