Terraforming Mars is an idea that scientists have been actively researching, and maybe silica aerogel could be the answer

Terraforming Mars is an idea that scientists have been actively researching, and maybe silica aerogel could be the answer
Scientists are looking to explain where the underground source of heat on Mars is coming from, which creates liquid water are its polar ice cap
It’s a fairly dry and dusty world, so how did Mars get its frosty poles?