Does all capsules drops in Kazakhstan on return after every mission?
Since the US Space Shuttle retired in 2011, we launch to and return from the Space Station with the Russian Space Agency. So yes, these capsules (the Soyuz) land in Kazakhstan (or surrounding regions). However, different spacecrafts have different reentry trajectories, depending on where they aim to land. As you might recall, the Apollo mission capsules landed in the ocean. Since Space-X and Boeing are currently building new vehicles so that we will also launch from the US again to get to the International Space Station, these spacecraft will return to the US. For example, you may have seen footage of Space-X cargo vehicles splashing down into the Pacific over the last few years. The Boeing Starliner plans to land on land instead of water. NASA is also currently building the Orion spacecraft, which will take us to destinations beyond low earth orbit (where the Space Station is), whether that be the Moon or Mars or another target. Orion will also splash down in the ocean.