Star Formation - 0 views
Heated gas stream at a cool star formation?In the inner regions of a galaxy cluster, astronomers found by Michael McDonald from the Massachusetts Institute of Technology in the USA further evidence...
Group items tagged
Comet Lovejoy visible in the night sky - 0 views
Observing Tip: Comet Lovejoy visible in the night skyLovejoy has developed over the past few weeks, far better than predicted - the chances of being able to see him in January with the naked eye, a...
Comet Lovejoy visible in the night sky - 0 views
Observing Tip: Comet Lovejoy visible in the night skyLovejoy has developed over the past few weeks, far better than predicted - the chances of being able to see him in January with the naked eye, a...
Doctorat in Astronomy ? - 0 views
I would love to do a doctorate in astronomy. What are the chances to find accommodation for a doctoral thesis in the private sector?The positions at universities and research institutions in the fi...
Doctorat in Astronomy ? - 0 views
I would love to do a doctorate in astronomy. What are the chances to find accommodation for a doctoral thesis in the private sector?The positions at universities and research institutions in the fi...
Revealing pattern without planets - 0 views
Revealing pattern without planets Planets around young suns are formed in a disk of gas and dust orbiting the star just created. Many such disks have now been detected around young stars. In some y...
Archaeology in the universe - 0 views
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Surface and core of the Earth in its sights - 0 views
Surface and core of the Earth in its sightsOn September 10, the Russian Plesetsk cosmodrome to be brought from the ESA GOCE satellite into orbit to determine the gravitational field and the referen...
Back on The Ground - 0 views
Furnace starts trial operationThe German ESA astronaut Alexander Gerst is now back on the ground, the commissioning of an assembled by him on the ISS furnace for experiments in materials science, h...
Surface and core of the Earth in its sights - 0 views
Surface and core of the Earth in its sightsOn September 10, the Russian Plesetsk cosmodrome to be brought from the ESA GOCE satellite into orbit to determine the gravitational field and the referen...
Back on The Ground - 0 views
Furnace starts trial operationThe German ESA astronaut Alexander Gerst is now back on the ground, the commissioning of an assembled by him on the ISS furnace for experiments in materials science, h...
[0904.0402] A thermodynamic basis for prebiotic amino acid synthesis and the nature of ... - 0 views
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Todd Suomela on 07 Apr 09Of the twenty amino acids used in proteins, ten were formed in Miller's atmospheric discharge experiments. The two other major proposed sources of prebiotic amino acid synthesis include formation in hydrothermal vents and delivery to Earth via meteorites. We combine observational and experimental data of amino acid frequencies formed by these diverse mechanisms and show that, regardless of the source, these ten early amino acids can be ranked in order of decreasing abundance in prebiotic contexts. This order can be predicted by thermodynamics. The relative abundances of the early amino acids were most likely reflected in the composition of the first proteins at the time the genetic code originated. The remaining amino acids were incorporated into proteins after pathways for their biochemical synthesis evolved. This is consistent with theories of the evolution of the genetic code by stepwise addition of new amino acids. These are hints that key aspects of early biochemistry may be universal.
Fifth ATV's Georges Lemaître - 1 views
The fifth and final current proposed Automated Transfer Vehicle (ATV) of the European Space Agency will carry the name "Georges Lemaître". The Belgian theologian and astrophysicists is considered t...
How can I shorten my Astro-Studies ? - 0 views
Do you have to study really five years physics to make astronomy or you can also directly available to study astronomy and astrophysics? Is it true that the lectures are in English?As a rule, no di...
Life will Always find a Way ??? - 0 views
Age Mild universeIf you follow the calculations of Piran and Jimenez, the universe is so mild in old age. About five billion years gamma-ray bursts were so frequent that they had never allowed the ...
Periodic Table of Elements completed ? - 0 views
Is the Periodic Table of Elements wholly or could it still be unknown elements in the universe?In the periodic table of the elements, the chemical elements are listed according to their atomic numb...
Periodic Table of Elements completed ? - 0 views
Is the Periodic Table of Elements wholly or could it still be unknown elements in the universe?In the periodic table of the elements, the chemical elements are listed according to their atomic numb...
How can I shorten my Astro-Studies ? - 0 views
Do you have to study really five years physics to make astronomy or you can also directly available to study astronomy and astrophysics? Is it true that the lectures are in English?As a rule, no di...
Life will Always find a Way ??? - 0 views
Age Mild universeIf you follow the calculations of Piran and Jimenez, the universe is so mild in old age. About five billion years gamma-ray bursts were so frequent that they had never allowed the ...
International Astronomical Union | IAU - 1 views
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The International Astronomical Union (IAU) was founded in 1919. Its mission is to promote and safeguard the science of astronomy in all its aspects through international cooperation.
