The Many Views of a Solar Eruption

By now we’re used to the images. In brilliant orange, neon green, or electric blue, we see the ever changing surface of the Sun, its sunspots, flares, and coronal mass ejections. From Solar Dynamic Observatory (SDO), Solar Heliophysics Observatory (SOHO), or STEREO,  these images combine to tell us what’s going on on the Sun’s surface and how it might affect us here on Earth. But what is the difference among these spacecraft and what do they each have to offer? NASA used a convenient non-Earth facing coronal mass ejection on May 1 to demonstrate: