The basic composition of Mars is similar to Earth. The core of the planet consists of primarily iron and sulfur that is surrounded by a mantle consisting of silicates. The crust of Mars covers the mantle and is made of basalt and iron oxide which contributes to its red color. Although the...
2001 MARS ODYSSEY SET TO FIND OUT WHAT MARS IS MADE OFAGENCYGROUP09FDCH Regulatory Intelligence Database
The distribution of non-volatile elements on Mars: Mars Odyssey GRS results The major scientific objective of the Gamma-Ray Spectrometer (GRS) on the 2001 Mars Odyssey Mission is to determine the distribution of elements in the near-surface of Mars. Mars Odyssey has been in its mapping orbit ...
C.MarsD.Venus(金星)(3)What'sthemeaningoftheunderlinedword"gas"inthispassage? ___A.气体B.毒气C.卫星D.汽油(4)Wecanonlyseesomestarsatnightbecause ___.A.thestarsareverysmallB.thestarsdon'tgiveofflightC.thestarsonlyappearatnightD.thestarsaretoofarawayandthesunlightistoostrong(5)What'sthebestti...
It is the third planet from thesun. It is the only one known to support life(支持生命存活). Most of Earth is covered by water.Mars is known as the Red Planet. Scientists arestudying Mars for signs of life.Jupiteris the largest planet in our solar system. Itis made of gas.Saturn is...
In that sense, Earth is probably unique. Although we may detect some life elsewhere, it will necessarily be completely different.从这个意义上说，地球可能是独一无二的。虽然我们可能会在其他地方发现一些生命，但那肯定是完全不同的。It was this mind-blowing series of improbable events that made Earth...
The temperature on Mars is relatively low, averaging about minus 80 degrees Fahrenheit (minus 60 degrees Celsius).
We made the ice, we can see a bit here, a sort of growth on the edge of the window. The ice is bathed in ultra-violet light, simulating solar radiation, which breaks up the molecules.我们制作了冰，我们可以看到，在窗户的边缘生长着一种东西。冰沐浴在紫外线中，模拟太阳辐射分解分子。This ...
It's fun to sit on the Earth and think what our future life on Mars might be like." However, we can't just pack bags of bricks onto a spacecraft to Mars.Scientists at the University of Manchester have come up with a good idea. They have made a new kind of brick. It is made ...
I.完形填空[贵州铜仁中考改编]What do you know about Mars? What does it look like?Mars is the fourth planet from the Sun in our solar system and is _ 1__ after Mars, the Roman god of war. Its diameter(直径) is 53% as 2 as that of the Earth.Mars goes around the Sun at a ...