For example, Donna Lee Shirley led the team that built the vehicle to explore the planet Mars.

VOA: special.2009.05.13

Mercury is a liquid metal, and mercury, the planet, is the fastest moving naked eye heavenly body. Mars, iron, why is Mars red?

水银是液态金属，水银，行星，是肉眼能看到的运动最快的天体,火星，铁，为什么火星是红色的？

麻省理工公开课 - 固态化学导论课程节选

I looked up to the sky and saw the Red Planet Mars.

VOA: special.2010.07.31

It also is probably what a number of reporters said earlier this month when they were permitted to see a machine that will be sent to the planet Mars.

VOA: special.2011.04.26

He decided to spend more time observing the planet Mars.

VOA: special.2010.07.11

Water exists on Earth and the planet Mars.

VOA: special.2009.09.30

NASA plans to send the Mars Science Laboratory to the red planet in the autumn of two thousand eleven.

VOA: special.2009.12.30

There something happens. He does not know how, but he has been transported to the Red Planet,Mars.

VOA: special.2010.07.17

I could not stop looking at it. It was Mars...the red planet...

VOA: special.2010.07.10