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91. Because the Mars return mission is so demanding, the benefit conferred by using Mars-derived propellants is great.

92. Given the strength of his latest release, Blue Sky On Mars, that could be changing.

93. Compare Boston Chicken to Mars,(http://sentencedict.com/mars.html) maker of the candy bars.

94. The place smells like something died in there, but not something from Earth, something dead from Mars.

95. It is 25 years since a spaceship landed on Mars.

96. This time, when the Sun and Mars are opposite each other in the sky, is called opposition by astronomers.

97. Mars and Saturn could now be gazed upon in any nineteenth-century drawing-room.

98. The occupation at Nanterre which gave birth to the 22 Mars movement was to protest against this proposal.

99. And they'd find the guilty party: a giveaway print of designer lipstick mars the rim.

100. Even modest-sized impactors can blast atmospheric gases off of Mars at speeds above escape velocity.

101. Why does Mars have ancient floods, but no water on the surface today?

102. There is no liquid water on the surface of Mars today because the pressure of the atmosphere is very low.

103. This show examines evidence both pro and con, and glimpses the future of Mars research.

104. Both Phobos and Deimos always keep the same side toward Mars.

105. The key to manufacture of storable fuels on Mars lies in the use of water-bearing surface materials, not atmospheric water vapor.

106. The space agency plans to launch robotic missions to Mars every two years.

107. A rocket race to Mars Try this game from Chatterbox 2 with your class.

108. The thin carbon dioxide atmosphere on Mars admits sunlight to the surface with very little attenuation.

109. He is navigating a transport ship coming in to land on Mars.

110. In order to journey to Mars or beyond, you needed a crew.

111. Q: If there was life on Mars, did they eat french fries?

112. Mars and Mercury were hidden in the sun's glare and Pluto was too small and distant to appear.

113. M., on July 5, 1947? How long has life existed on Mars?

114. The last time he had come to greet some one from Mars it had been DeVore.

115. At this level of detail, the atmosphere of Mars is quite similar to that of Venus.

116. This impact, or a later one, blasted the rock off the surface of Mars and sent it flying towards Earth.

117. Thus Earth progresses quite a bit more rapidly around the Sun than Mars does.

118. Fixing Mars would not consume enough resources to interfere with any of our really ambitious plans.

119. Likewise, on Mars carbon monoxide is easy to make but is not necessarily the optimum fuel.

120. Thus, the lower atmosphere and surface of Venus are far hotter than comparable regions of the Earth and Mars.