The Astronomical Records in… Trees?

The video explores how cosmic events, such as supernovae, influence Earth by affecting its atmosphere and creating carbon-14 in tree rings. By studying these rings, scientists can trace historical cosmic events and understand their global impact. The video also discusses the potential risks of future cosmic events on technology and life on Earth.

What role do cosmic rays play in the formation of carbon-14 in the atmosphere?

How do trees capture carbon-14 levels in their growth rings?

Why is it challenging for scientists to find old trees for studying carbon-14 levels?

What significant event occurred around 774 to 775 CE that affected carbon-14 levels globally?

What are some possible causes for the spikes in carbon-14 concentrations observed in ancient trees?