Astronomy
The Role of Cosmic Rays in Shaping Interstellar Chemistry
Quick fact
Cosmic rays can penetrate dense molecular clouds and ionize molecules even where ultraviolet starlight cannot reach, triggering the formation of water and organic molecules in the coldest, darkest parts of space.
Why this is interesting
You've probably heard that space is cold and empty, but hidden deep inside dark clouds, cosmic rays are sparking the chemistry that builds planets and maybe even life. How can invisible particles traveling near light speed turn simple atoms into complex molecules?