RSS & Journals
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The size and age of the universe, as well as how fast it is expanding, has been confirmed with a new, precise method that uses galaxies as lenses to look at other galaxies. The new measurement confirmed the age of the universe as 13.75 billion years old, to within 170 million years, and also confirmed the strength of dark energy, which is responsible for the accelerating expansion of the universe. When looking out at the cosmos, it can be difficult for scientists to distinguish between a very bright light far away and a dimmer source much closer to Earth. To circumvent this problem, a team of researchers used a technique called gravitational lensing to measure the distances light traveled from a bright, active galaxy to the Earth along different paths, along with data from the Hubble Space Telescope. Researchers can use the observations to infer not just how far away the galaxy lies but also the overall scale of the universe and some details of its expansion. Galactic Lenses Confirm Universe's Age, Size
Un luna en llamas La luna joviana Ío alberga un lago global de roca derretida, bajo una superficie plagada de volcanes. Esa es la conclusión del nuevo análisis de los datos que hace una década obtuvo la sonda Galileo. Gagarin, 50 años después. Astroseti : Astronomía, Astrobiología, Astronautica y SETI
Universe Today Einstein Lecturing. (Ferdinand Schmutzer, Public Domain) One of the benefits of being an astrophysicist is your weekly email from someone who claims to have “proven Einstein wrong”. These either contain no mathematical equations and use phrases such as “it is obvious that..”, or they are page after page of complex equations with dozens of scientific terms used in non-traditional ways. They all get deleted pretty quickly, not because astrophysicists are too indoctrinated in established theories, but because none of them acknowledge how theories get replaced. [click to continue…]
Space - Astronomy and Exploration
science::.. The Astronomical Journal
spotlighting exceptional research
Physical Review Focus
Physical Review Letters Cover Image: Phys. Rev. Lett.
Journals Online - Browse Journals By RSS/Atom Feeds What are RSS and Atom feeds? RSS and Atom news feeds are computer-readable files that summarise new content as it appears on a website. (RSS and Atom are just two different formats that do basically the same thing.) Each feed includes a heading, a brief description of the new content and a link through to the website.
Read an essay on the greatest science books by Nobel laureate Kary B. Mullis. 1. and 2. The Voyage of the Beagle (1845) and The Origin of Species (1859) by Charles Darwin [tie] One of the most delightful, witty, and beautifully written of all natural histories, The Voyage of the Beagle recounts the young Darwin's 1831 to 1836 trip to South America, the Galápagos Islands, Australia, and back again to England, a journey that transformed his understanding of biology and fed the development of his ideas about evolution. 25 Greatest Science Books of All Time