@article{Physics.5.64,
  title = {Ancient Rainfall, Carved in Stone},
  author = {Castelvecchi, Davide},
  journal = {Physics},
  volume = {5},
  issue = {},
  pages = {64},
  numpages = {1},
  year = {2012},
  month = {Jun},
  doi = {10.1103/Physics.5.64},
  url = {http://link.aps.org/doi/10.1103/Physics.5.64},
  publisher = {American Physical Society}
}