The Miller-Urey Experiment and the Existence of Life on Mars

نویسنده

  • Kelly Gloor
چکیده

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The Urey instrument: an advanced in situ organic and oxidant detector for Mars exploration.

The Urey organic and oxidant detector consists of a suite of instruments designed to search for several classes of organic molecules in the martian regolith and ascertain whether these compounds were produced by biotic or abiotic processes using chirality measurements. These experiments will also determine the chemical stability of organic molecules within the host regolith based on the presenc...

متن کامل

Primordial soup was edible: abiotically produced Miller-Urey mixture supports bacterial growth

Sixty years after the seminal Miller-Urey experiment that abiotically produced a mixture of racemized amino acids, we provide a definite proof that this primordial soup, when properly cooked, was edible for primitive organisms. Direct admixture of even small amounts of Miller-Urey mixture strongly inhibits E. coli bacteria growth due to the toxicity of abundant components, such as cyanides. How...

متن کامل

Oligomerization of Nucleic Acids and Peptides under the Primitive Earth Conditions

Question how life originated on the primitive earth is still a frontier of science. Nowadays, primitive life-like system is mostly considered to have emerged by chemical evolution on the Earth although some scientists are evaluating the possibility of panspermia hypothesis [1-3]. External and internal energies from the earth, such as cosmic rays, ultra violet radiation, meteorite impacts, volca...

متن کامل

Urey: Mars Organic and Oxidant Detector

One of the fundamental challenges facing the scientific community as we enter this new century of Mars research is to understand, in a rigorous manner, the biotic potential both past and present of this outermost terrestrial-like planet in our solar system. Urey: J.L. Bada ( ) Scripps Institution of Oceanography, La Jolla, CA 92093-0212, USA e-mail: [email protected] P. Ehrenfreund Leiden Institut...

متن کامل

Effectiveness of Cognitive-Existential Group Therapy on Life Expectancy and Anxiety of Adolescent with Cancer

Introduction: People with cancer especially adolescent, is experiencing some troubles such as anxiety, depression, and unhappiness. This study aimed to investigate the effectiveness of Cognitive-existential group therapy on life Expectancy and the anxiety of cancer diagnosed adolescent. Methods: The Research method was quasi-experimental with pretest-posttest. This study population consisted of...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2003