... A Force from Empty Space: The Casimir Effect . ... Measuring slightly over one tenth of a millimeter, the ball moves toward a smooth plate in response to energy fluctuations in the vacuum of empty space. ... The form and genesis of dark energy is almost completely unknown, but postulated as related to vacuum fluctuations similar to the Casimir Effect but generated somehow by space itself . ... NASA Official: Jay Norris. ... Publications with keywords: Casimir effect - dark energy - cosmology . ...

... 2015 December 6 . A Force from Empty Space: The Casimir Effect . ... Measuring slightly over one tenth of a millimeter, the ball moves toward a smooth plate in response to energy fluctuations in the vacuum of empty space. ... The form and genesis of dark energy is almost completely unknown, but postulated as related to vacuum fluctuations similar to the Casimir Effect but generated somehow by space itself . ... About APOD | ...

home publications > mercury . ... The Universe in the Classroom . ... Decoding the Mystery of Dark Energy . ... About 70% of the universe?s energy consists of a force that accelerates cosmic expansion, and scientists know virtually nothing about it. ... Using Type Ia supernovae, which result from the thermonuclear explosions of white dwarfs locked in binary systems (see "Searching for Supernovae To Be," Jan/Feb 2003 ), the teams were able to determine the recent expansion history of the universe. ...

... The flux distributions of spectrophotometric standard stars were initially derived from the comparison of stars to laboratory sources of known flux but are now mostly based on calculated model atmospheres. ... Several historical lab-based flux calibrations are reviewed; and the SEDs of stars in the major online astronomical databases are compared to the CALSPEC reference standard spectrophotometry. ... ADS Citation Query . citations = 14 . citations vs. year [year,citations] . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Our Galaxy . ... Space Flight . ... Here be dark matter! ... This is dark energy, a force which permeates all space. ... No one knows what dark energy and dark matter are; researchers study the light of far off galaxies to see how these elusive quantities effect them. ... Dark matter and dark energy are utter mysteries today but so were electricity, magnetism and radioactive decay once. ... Some times ?Dark Matter? is real, remember Neptune! ...

This diagram shows the ingredients of the universe. Astronomers have recently realized that the main ingredient is "dark energy," a mysterious form of energy that exists between galaxies and forces the universe to expand at an ever-increasing rate. The next-largest constituent is "dark matter," which is an unknown form of matter. The rest of the universe consists of ordinary matter, most of which is locked up in stars and clouds of gas. ... Ann Field (STScI) ...

... Bad Astronomy . ... Bitesize Astronomy . ... Have you ever looked at pictures of Saturn's rings and noticed what look like gaps in the rings? ... Gian Domenico Cassini discovered a large gap in Saturn's rings in 1675. Later, an astronomer named Encke discovered a smaller gap near the edge of the rings. ... It was found long ago that an orbit in the Cassini Division, as the large gap is named, has a period almost exactly one-half that of one of Saturn's moons named Mimas. ... 2008 Phil Plait. ...

ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Information & tools for observers . ... Australia Telescope Online Archive (ATOA) . ... ATCA | ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... The Australia Telescope National Facility Colloquium . ...

... GSAOI Home . ... Science . ... Type Ia supernovae have emerged as one of the sharpest tools in the astrophysicists kit for measuring extragalactic distances, with a precision of around 6%. ... Different types of dark energy affect the rate at which the Universe expands depending on their effective equation of state. ... Each variant of dark energy has its own evolving equation of state that produces a signature in the Hubble diagram of the Type Ia supernovae. ...

So the evidence for Dark Matter is fairly overwhelming. ... Theory: if the Universe is closed then all the luminous matter seen in galaxies contributes only 0.5% of the mass required to eventually halt the expansion . ... This means that galaxies are surrounded by dark matter halos which trapped baryonic gas (e.g. hydrogen) and turned it into stars. ... WIMPS - weakly interacting massive particles created in the extremely early universe . ... Theory 99% of the Universe is Dark Matter . ...

... According to the big bang theory, huge amounts of energy were released, giving rise to matter, antimatter and dark matter. ... The Big Bang Theory has enabled scientists to make certain predictions. ... These particles are the building blocks of matter, antimatter and dark matter. ... This could theoretically happen if the hydrogen was shockheated to over 100000 C. The Big Bang Theory is only a theory and so there is no concrete evidence to suggest that it is entirely correct. ...

... More than 300 surface reconstructions are already known for pure Si surface and Si surface with adsorbate. Study of their properties by the methods of surface physics reveal numerous interesting phenomena including various phase transitions accompanied by changes of Fermi-surface topology, development of the charge-density wave, etc . ... The charge-density wave (CDW) develops in materials with a chain-like crystal structure at temperatures below the Peierls transition temperature. ...

I was wondering what conditions should be met to have the "darkest" sky .. ... Upon the above publication of the Southern Galactic hemisphere, TunГ Tezel started seeking opportunities to create the Northern counterpart image. ... So, the initial quest of having the darkest possible sky have delivered us these two all-sky images of the two galactic hemispheres as seen from Planet Earth. Zoomable and 'full-screenable' fisheye view of the "darkest sky" Southern Galactic Hemisphere image. ...

... Deviatov E.V., Khrapai V.S., Shashkin A.A., Dolgopolov V.T., et al. ... Phys. Rev. Lett. ... V.S. Khrapai, A.A. Shashkin, V.T. Dolgopolov . ... V.S. Khrapai . ... V.S. Khrapai, A.A. Shashkin, E.L. Shangina, V. Pellegrini, F. Beltram, G. Biasiol and L. Sorba . ... Khrapai V.S., Shashkin A.A., Trokina M.G., Dolgopolov V.T. et al. ... V.S. Khrapai, A.A. Shashkin, M.G. Trokina, V.T. Dolgopolov, V. Pellegrini, et al. ... V.V. Vanovsky, V.S. Khrapai, A.A. Shashkin, V. Pellegrini, L. Sorba, G. Biasiol . ...

... Most Important Journals . Less Popular Astronomical Journals . Physics . Space, Selectial mechanics, .. Russian Journals . ... Astrophysics & Astronomy . ... Astronomical Journal . ... New Astronomy . ... Publications of the Astronomical Society of the Pacific . ... STScI News . Space Telescope Insitute Newsletter . ... Journal of Astronomical Data . ... Journal of High-Energy Physics (mirror in CERN ) [astro, grav, hi-energy .. ... Journal of Experimental and Theoretical Physics . ...

National Aeronautics and Space Administration . ... Frank Borman . ... A romance with airplanes that began when he was 15 years old, took Frank Borman to the Air Force and then to NASA. ... Frank Borman retired from the air Force in 1970, but is well remembered as a part of this nation's history, a pioneer in the exploration of space and a veteran of both the Gemini 7, 1965 Space Orbital Rendezvous with Gemini 6 and the first manned lunar orbital mission, Apollo 8, in 1968. ...

... Astrophysics Group . ... AMI Publications . ... AMI Consortium: Hurley-Walker N. et al., 2011, preprint (arXiv:1103.0947) . ... AMI Consortium: Olamaie M. et al., 2010, preprint (arXiv:1012.4996) . ... AMI Consortium: Shimwell T. W. et al., 2010, preprint (arXiv:1012.4441) . ... AMI Consortium: Davies et al., 2010, preprint (arXiv:1012.3659) . ... AMI Consortium: Franzen et al., 2010, preprint (arXiv:1012.3711) . ... AMI Consortium: Rodriguez-Gonzalvez C. et al., 2010, preprint (arXiv:1011.0325) . ...

... Samara region . ... Professor of the Biochemistry Faculty of Florida International University (Miami, USA), a well-known scientist in the field of quantum chemistry Aleksandr Moiseevich Mebel visited SSAU in the middle of December. ... In addition, in his lectures in SSAU Aleksandr Mebel told about modern methods of quantum chemistry, provides accurate information about the geometric and electronic structure of molecules, the relative energies of the intermediate states and reaction products. ...

Our publications in 2007 year Pustilnik, S. A.; Tepliakova, A. L.; Kniazev, A. Y.; Burenkov, A. N.; SAO; Russia; SAAO; Africa, South . eprint arXiv:0712.4205, submitted to Astrophysical Bulletin (SAO) (12/2007) . Pustilnik, S. A.; Tepliakova, A. L.; Kniazev, A. Y. eprint arXiv:0712.4007, submitted to Astron.Lett (12/2007) . ... Kniazev, A. Y.; Pustilnik, S. A.; Zucker, D. B. eprint arXiv:0707.4285, submitted to MNRAS (07/2007) . ... eprint arXiv:0707.4288 (07/2007) . ...

... PROBLEMS: "Unknown" (i.e. no physics model) components; What's a "Good-Enough-Fit" (e.g. Poisson)? ... ASIDE: MULTI-SCALE FOR POISSON - called Multiplicative Multiscale Innovation Models MMI Slides courtesy of R.Willett, SAMSI 2006 Timmermann Nowak, 1999 Kolaczyk, 1999 ASIDE: MULTI-SCALE FOR POISSON - called Multiplicative Multiscale Innovation Models MMI Slides courtesy of R.Willett, SAMSI 2006 Timmermann Nowak, 1999 Kolaczyk, 1999 ASIDE: MULTI-SCALE FOR ...