Por un escritor de hombre misterioso
This map shows the frequency of carbon dioxide frost's presence at sunrise on Mars, as a percentage of days year-round.
Carbon Dioxide Glaciers Are Moving At Mars' South Pole - Planetary Science Institute
Carbon Exchange and Loss Processes on Mars
Cold Case Solved: NASA Maps Reveal Mars' Hidden Ice Stashes
Where on Mars Does Carbon Dioxide Frost Form Often? - PICRYL - Public Domain Media Search Engine Public Domain Search
There's Not Enough CO2 To Terraform Mars
NASA's MAVEN Mission Investigates Mars' Atmosphere
Bad Astronomy, Dry ice frost evaporating may cause avalanches on Mars
The snow forecast for Mars: Dry ice and a meter a year
Dry Ice on Mars - NASA Science
Chinese Explorer Finds Signs of Recent Water on Mars