Tree rings hold clues about ancient solar storms. New research shows tree growth and carbon storage can shift those signals across years.

Scientists have long relied on tree rings to learn about ancient solar storms—rare bursts of high-energy particles from the ...

Tree rings serve as natural time capsules capturing powerful radiocarbon spikes from ancient Miyake solar storms. A new study ...

The path of 14C from cosmic rays to cellulose. Green arrows denote newer pools of 14C and brown arrows denote older pools. The size of the arrow reflects best estimates of size of the carbon pool.