NASA Spacecraft Spot Something New On the Sun

The top images show coronal cells as viewed from above by STEREO-B (on the left) and SDO (on the right). Their diameters are about 18,000 miles. The bottom images show the same region as viewed almost simultaneously from the sides by STEREO-B (on the left) and SDO (on the right). The bottom views show the plumes as if they were leaning away from each observatory, the way a giant pillar would look if seen from the side. The heads of the black and white arrows mark identical points on the sun as seen from STEREO-B and SDO, respectively.