@misc{indiciaefd9241e0f0a2,
  title = {Planetary science. Iceball Mars?},
  author = {Richard A Kerr},
  year = {2003},
  doi = {10.1126/science.300.5617.234},
  url = {https://pubmed.ncbi.nlm.nih.gov/12690163/},
  note = {Source identifier: 12690163}
}