“Now we have proof that validates(证实) __6 ℃ we've suspected(怀疑) .” _Scientists found frozen water on Mars back in 2008, but c_7_ things to actually survive there has to be a liquid source of water.The first time they _8 D there could be liquid water on Mars was five ...
When we come up with a scenario, we get a shiver of excitement, thinking that maybe we've got close to what actually happened. Planetologists start from the present position of the planets, attempting to hypothesise a scenario of the Solar System's formation with the help of computer simula...
Having travelled from the outer reaches of our Solar System, this organic matter ended its journey in the oceans of primitive Earth. Now we need to know what the environmental parameters were which allowed this matter to keep reassembling until it formed living organisms.这些有机物从太阳系的外围...
Dave MosherSkye Gould
one thing we're doing in astrobiology is that we're looking very carefully at microbes.Bacteria are one example of microbes.They are tiny organisms.You need a microscope to see them.So astrobiologists are interested in whether microbes might have been carried to earth on rocks from other plane...
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Uh, you don't need to know the details of the process right now. We are still figuring out just how it works ourselves. But you might be interested to know that this concept of mineral evolution is being used in the search for evidence of life on other planets. ...
But—just because a particular mineral is found on say, Mars or Venus—uh, we really shouldn't assume that whatever caused it to turn up there … must be the same process that formed that mineral here on Earth. 本文生词0 显示文中生词 ...
Multi-taskingis a poor way to get things done. So Project Managers need to find other ways to be effective. We do. Indeed, my best-selling book is not a Project Management book. It isHow to Manage your Time, since you ask. At the heart of this book ismy OATS Principle for personal...
Why is the water cycle essential to life on Earth? Why is the Earth's crust unstable? What is the primary reason why convection occurs in the atmosphere? What process keeps the amount of earth's water constant? Why do living organisms need nutrients?