SpaceX launched NASA's Crew-12 mission with a quartet of astronauts aboard Crew Dragon Freedom today (Feb. 13), bound for an eight-month stint on the International Space Station.
Somewhere around the year 774 CE, the Sun erupted with extraordinary violence. High energy particles slammed into Earth’s atmosphere, triggering nuclear reactions that produced radioactive carbon-14. Trees across the planet absorbed this carbon and locked it into their wood, preserving a record of that ancient solar storm that scientists can still read today.

