The atmosphere of Mars is relatively thin and has a very low surface pressure.

Compared to the earth, the atmosphere of Mars is about 100 times thinner.

For several years, researchers have found methane in the atmosphere of Mars.

The thin atmosphere of Mars did little to dissipate it.

The asteroid cities are dead, and the atmosphere of Mars is leaking back into space.

So rare is the atmosphere of Mars that it absorbs very little heat from the sun.

The atmosphere of Mars is too thin to breathe, even if it were pure oxygen.

What was finally released to the atmosphere of Mars would be almost pure, dry carbon dioxide.

Compared to Earth, the atmosphere of Mars is quite rarefied.

Anaerobic bacteria, to live in the oxygen-free atmosphere of Mars.

The atmosphere of Mars contains a great deal of fine dust particles.

The result was a high-power engine that used the thin atmosphere of Mars to increase its thrust.

However, what he was breathing in now wasn't much more than an improved version of the atmosphere of Mars.

Both craft also studied the atmosphere of Mars.

He stood there, unprotecteds holding his breath against the unbreathable atmosphere of Mars.

"I wonder whether we shall find the atmosphere of Mars suitable for terrestrial lungs.

In 1971, only two years after the first footsteps on the moon, it entered the atmosphere of Mars and parachuted toward the surface.

Spectroscopic observations in the 1860s and 1870s led many to believe the atmosphere of Mars is similar to Earth's.

Almost all of the atmosphere of Mars is Carbon dioxide.

Medusa's song 'permeated the atmosphere of Mars and bled into space.

The 400-pound rovers will travel in a shell designed to protect them from the heat generated by friction with the atmosphere of Mars.

The atmosphere of Mars is very thin because the low gravity is unable to retain most gases.

It reminded him of dropship insertions into the atmosphere of Mars.

Mars atmospheric entry is the entry into the atmosphere of Mars.

Dawes presumed that the atmosphere of Mars was thin because surface markings on the planet could easily be seen.