Briefly explain the purpose of the International Space Station, and list the name of all space agencies involved in building and operating it.

Q1. Briefly explain the purpose of the International Space Station, and list the name of all space agencies involved in building and operating it. When is the assembly of the station expected to be completed? Include the name and the expected date of launch of the last module to be added. Q2. What is the main objective of NASA’s Mars Science Laboratory (MSL) mission? When was it launched and when and where is it scheduled to land on Mars? Explain the major differences between this mission and Mars Exploration Rovers (MER) mission?