A mysterious woman may have left her mark on the world’s oldest rune stone

This week, decipher clues from the world’s oldest rune stone, see the ethereal glow of birds-of-paradise, watch a light show at the heart of the Milky Way, and more.

​ This week, decipher clues from the world’s oldest rune stone, see the ethereal glow of birds-of-paradise, watch a light show at the heart of the Milky Way, and more. Read More Breaking News, Latest News and Videos | CNN