本期内容：

The European Space Agency and Russia launched a joint mission to Mars, with the lift-off of a Proton rocket in Kazakhstan. The spacecraft, comprising an orbiter, which will analyse methane and other gases in the Martian atmosphere, and a lander, named Schiaparelli after an Italian astronomer, is due to reach the red planet in October.

词义解析:

Joint mission: 联合任务
Lift-off：发射
Comprise：由……组成
Orbiter：轨道器
Methane：甲烷
Martian：火星的