Mars landers and rovers were designed to look for signs of liquid water that may have flowed on Mars in the distant past.

VOA: special.2010.07.28

So, if we're going to go to the moon, we're going to go to Mars,we want to be able to produce oxygen, structural metals and photovoltaic materials from in situ resources.

如果我们要去月球上，我们要去火星上，我们则必须要制造,氧气，结构金属和光电材料,就在原地制造。

麻省理工公开课 - 固态化学导论课程节选

How can whether or not I am the same guy as the guy who was lecturing to you on Tuesday depend on what's happening in Pennsylvania or Australia or Mars?

我跟星期二给你们讲课的人,是否为同一人这个问题,怎么能取决于在宾州或澳州或火星发生的事情？

耶鲁公开课 - 死亡课程节选

And what does that mean? It means I am trained in geology, but with interests in the other planets and Mars in particular."

VOA: special.2010.07.28

Mister Lowell published his first book about Mars in eighteen ninety-five.

VOA: special.2010.07.11

Sylva Louis has lived in the sprawling refugee camp of Champs de Mars in downtown Port au Prince since the earthquake on January 12.

VOA: standard.2010.03.29

The government will begin moving people out of Champs de Mars in the next few weeks.

VOA: standard.2010.03.29

Join us again next week at this time as we continue "A Princess of Mars" in VOA Special English.

VOA: special.2010.07.17

The American food company Mars took the lead in paying for mapping the genes of the Forastero cocoa tree.

VOA: special.2010.10.19

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

VOA: special.2009.12.30

Mars Day at the Smithsonian Air and Space Museum in Washington is a celebration of our solar system's most famous planet.

VOA: special.2010.07.28

Mars has less gravity. My attempts to walk resulted in jumps and hops, which took me into the air.

VOA: special.2010.07.10

Percival Lowell did not know that his eyes played a part in the markings he saw on Mars.

VOA: special.2010.07.11

Visitors to Mars Day crowded around a piece of the meteorite in the huge Milestones of Flight Gallery.

VOA: special.2010.07.28

He also wrote a series of books about an American who traveled to Mars and fell in love with a beautiful princess.

VOA: special.2010.07.11

Another robot is designed to move and turn in a way that is similar to the Mars rovers.

VOA: special.2010.07.28

The green Martians attacked. John Carter continutes to tell about what happens to him in Edgar Rice Burroughs's story, "A Princess of Mars."

VOA: special.2011.07.30

why not on Mars,too? I walked toward him and in a normal voice announced my name and said I had come in peace.

VOA: special.2010.07.17

In it,he developed a theory that intelligent life had created waterways all over the surface of Mars.

VOA: special.2010.07.11

In January,a team of NASA and university scientists announced that they had found methane gas on Mars.

VOA: special.2009.12.30

John Carter continues to tell what happens in Edgar Rice Burroughs' story, "A Princess of Mars."

VOA: special.2010.07.31

Because of the gravity on Mars, spacesuits may have to be designed to be lighter than suits used in orbit or on the moon.

VOA: special.2011.04.06

This raises the exciting possibility that life may have existed in the past on Mars.

VOA: special.2009.12.30

He said he could see changes in the seasons on the surface of Mars.

VOA: special.2010.07.11

In nineteen sixty-five, NASA's Mariner Four spacecraft showed that no waterways existed on Mars.

VOA: special.2010.07.11

It is the first book in a series that Mister Burroughs wrote about a man who travels to Mars during the last years of the eighteen hundreds.

VOA: special.2010.07.10

Michael Meyer is lead scientist for NASA's Mars Exploration Program in Washington.

VOA: special.2009.12.30

The popular series began in nineteen twelve with "The Princess of Mars."

VOA: special.2010.07.11

And now, the second program in our series, "A Princess of Mars."

VOA: special.2010.07.17

And next year, the country is launching a small space lab to practice docking in orbit - an essential part of manned missions to the Moon and Mars.

VOA: standard.2010.04.21