..."10 km bulge for a 1.4 million km diameter is actually pretty impressive."...
You know how men are.  Mr Sol trying to stay fit and trim for Mrs Sol., to impress her.
On light-er note, ..."These viruses appear spherical in shape, but a closer look actually reveals they are icosahedral."...
As are most geodesic domes are  based upon also.  
..."These virus structures ---complex---  have a combination of icosahedral and helical shape and may have a complex outer wall or head-tail morphology.".... 
LINK
There is a coild RNA or DNA serpent  inside this viral 
LINK,  
never both, and that is partially why viri are identified as twilight organisms, being niether alive nor dead"...
Ok so I guess that was on a darker note.