How Earth Is Zipping Through a Giant Interstellar Cloud Research from Antarctica has shed new light on our solar system's journey through a vast interstellar cloud.
The findings, published in Physical Review Letters, suggest that this cosmic neighborhood is leaving behind subtle signatures on Earth specifically, tiny amounts of iron 60, a radioactive isotope linked to supernovas.
The Local Interstellar Cloud is thought to be one of many vast clouds of gas and dust that permeate the galaxy.