Recent observations of distant galaxies suggest that the
strength of the electromagnetic force – the so-called fine-structure constant –
actually varies throughout the universe. In one direction, the constant seemed
to grow larger the farther astronomers looked; in another direction the
constant took on smaller values with greater distance.
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Know More about Robotic Mars Mission - 0 views
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Do you know Robotic missions to Mars have revealed clues about the planet's atmosphere and surface composition? NASA is investing to find and use natural resources beyond Earth. Want to know more about Robotic Mars Mission.
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Do you know Robotic missions to Mars have revealed clues about the planet's atmosphere and surface composition? NASA is investing to find and use natural resources beyond Earth. Want to know more about Robotic Mars Mission.
Portal:Astronomy - Wikipedia, the free encyclopedia - 0 views
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"Astronomy is a natural science that is the study of celestial objects (such as moons, planets, stars, nebulae, and galaxies), the physics, chemistry, and evolution of such objects, and phenomena that originate outside the atmosphere of Earth, including supernovae explosions, gamma ray bursts, and cosmic background radiation."
Extreme Science - 0 views
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Extreme Science is the place online to find the biggest, baddest, and the best in the world of extremes and learn about the science behind what makes each the most extreme example of its kind. Here you'll find world records in natural science, including earth science and the plant and animal kingdom. Not only will you find out who holds the records, but also key science concepts used to explain the story behind the record.
Technology Review: Blogs: arXiv blog: Why ET's genetic code could be just like ours - 0 views
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"The combined actions of thermodynamics and subsequent natural selection suggest that the genetic code we observe on the Earth today may have significant features in common with life throughout the cosmos."
spacetelescope.org - 1 views
SPACE.com -- New Physics? Fundamental Cosmic Constant Now Seems Shifty - 1 views
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If confirmed, this revelation could reshape physicists' understanding of cosmology from the ground up. It may even help solve a major conundrum: Why are all the constants of nature perfectly tuned for life to exist?
[0904.0402] A thermodynamic basis for prebiotic amino acid synthesis and the nature of ... - 0 views
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Of 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.
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...
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...
aliens? - 0 views
Are there really aliens?The question is whether it "aliens", ie aliens actually exist, can not be answered with certainty. To date, scientists have certainly not yet found any evidence that there i...
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...
aliens? - 0 views
Are there really aliens?The question is whether it "aliens", ie aliens actually exist, can not be answered with certainty. To date, scientists have certainly not yet found any evidence that there i...
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