> a quarter of a million chlorophylls

Chlorophyll is the name of the pigment that captures solar photons for the beginning of the photosynthetic pathway. I haven't read TFA, but green plants contain their chlorophyll in organelles called chloroplasts. 250K chlorophylls just doesn't sound right.

I think the article must mean 250k chlorophyll *molecules* per chlorosome. Seems about order-of-magnitude right for a large antenna complex.

Fascinating. Could this be similar to some of the very first bacterial life forms to emerge on Earth?