Thought some of our science fiction writers may find this interesting, especially when it comes to colonizing other worlds:
phys.org
The incredible challenge of landing heavy payloads on Mars
It's too bad Mars is such an interesting place, because it's actually one of the most difficult places to visit in the solar system, especially if you want to bring along a lot of luggage. That planet is a graveyard of missions that didn't quite make it.
