Mass Effect: Andromeda Trailer Breakdown: Everything We Know So Far
6. The Exploration
Planets can be explored from their surface to their underbelly, split in to mission hub areas, optional and "critical" paths, and feature world bosses. Each world is going to feature at least one of these bosses, encouraging players to return to planets that have already been explored to best them and uncover further secrets.
Environmental hazards will also be unique to planets, and list things such as acid pools, wreckage, and lava. In previous Andromeda trailers, we've also already seen sand and lightning storms.
New elements and materials can be scanned to unlock new research and crafting options..
The colony establishment mentioned in the trailer breakdown will allow us to place forward outposts on planets that allow us to change load outs and fast travel (presumably between outposts).