... Credit: W. Schaap ( U. Gorningen ) et al., 2dF Galaxy Redshift Survey Explanation: What is the largest structure known? ... A grouping of galaxies known as the Sloan Great Wall was discovered in the Sloan Digital Sky Survey and is a leading candidate. The Sloan Great Wall can be seen in this digitally recast contour map of galaxies in the Two Degree Field galaxy survey. ... The labeled Sloan Great Wall spans over one billion light years, longer than any structure ever measured. ...

... 2000 January 4 . Galaxies Cluster Toward the Great Attractor . ... The galaxies pictured above are part of a cluster of galaxies called ACO 3627 near the center of the Great Attractor . ... The Great Attractor is a diffuse mass concentration fully 250 million light-years away, but so large it pulls our own Milky Way Galaxy and millions of other galaxies towards it. Many of the galaxies in ACO 3627 are slowly heading towards collisions with each other. ... About APOD > . ...

... 2000 January 4 . Galaxies Cluster Toward the Great Attractor . ... The galaxies pictured above are part of a cluster of galaxies called ACO 3627 near the center of the Great Attractor . ... The Great Attractor is a diffuse mass concentration fully 250 million light-years away, but so large it pulls our own Milky Way Galaxy and millions of others galaxies towards it. Many of the galaxies in ACO 3627 are slowly heading towards collisions with each other. ... About APOD > . ...

... Tonight's Sky . ... Sky this Month . ... space physics . ... The Sky This Week: April 1 - 10 . ... Sky this Week . ... Sky Events . Get to Know the Night Sky . Tour the Deep Sky . Sky Guide . ... Observing springtime deep-sky objects with a large telescope . ... Johns Hopkins University Applied Physics Lab, Laurel, Maryland . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... ATNF Home . About ATNF . ... 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 . ... Parkes | ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... We construct a new catalog of galaxies in the Ursa Major cluster, a well-known nearby galaxy group, using the SDSS DR7 and NED data. ...

... These Frontier Fields will combine the power of HST with the natural gravitational telescopes of high-magnification clusters of galaxies. ... We are soliciting gravitational lensing maps for the last four Hubble Frontier Fields clusters (MACSJ0717.5+3745, MACSJ1149.5+2223, AbellS1063, and Abell 370) based upon the exceptionally deep HST FF imaging and other new ancillary data. ... For the full set of proposal instructions and requirements, see the FY16 Frontier Fields Lensing Map Call for Proposals....

... Dept. for Physics of Stars&Galaxies . Dept. for Space Plasma Physics . Dept. for Physics of Minor Celestial Bodies . Dept. for Physics of Planetary Systems . Dept. for Solar Physics . Department for Atmospheric Optics . ... Kinematics&Physics.. ... 2016,MNRAS, Vol.455 ,is.1,p.357-369. ... 2016,MNRAS, Vol.456 ,is.1,p.181-191. ... 2016,ApJ, Vol.816 ,is.1,p.3. ... Applied Optics . ... Solar Physics . ... All Pages . ... N1-12 . ... microfish . ... Applied Spectroscopy (microfishes) . ...

... 13th European VLBI Network Symposium . and Users Meeting . on September 20-23, 2016. ... 13th European VLBI Network Symposium and Users Meeting on September 20-23, 2016. ... Year book "Ephemerides of Minor Planets for 2016" on-line . ...

... Reconstruction of peculiar velocities of galaxies from large-scale redshift catalogues provides an exemplary application of optimal transport. ... U Frisch, S. Matarrese, R. Mohayaee, A. Sobolevsky, A reconstruction of the initial conditions of the Universe by optimal mass transportation , Nature, 417 (2002) 260-262 ( arXiv:astro-ph/0109483 ) . ... R. Mohayaee, A. Sobolevskii, The Monge Amp re Kantorovich approach to reconstruction in cosmology , Physica D (2008) accepted ( arXiv:0712.2561 ) . ...

... The highest redshift X-ray jet discovered . by Chandra in GB 1428+4217 at z = 4.72 . X-ray jet discovered by Chandra . ... Science Papers on ADS . ... Chandra Press Release . The paper describing the details nas been published in ApJ and it is available also on astro-ph Feb. ... The jet paper published in ApJ Letters is available on astro-ph Oct. ... ApJ Letters paper available on astro-ph: Paper 2003 Feb. ... ApJ papers available on astro-ph: Paper 1, 2002 and Paper 2, 2007 . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Planets . ... Exoplanets . ... Space Flight . ... Science Fiction . ... August . ... By admin August 18, 2011 Posted in: August . Artist's impressions of Kepler and the light curve of transiting planet (Image credit: NASA) . ... In 1995 we knew of only nine planets (including Pluto, how times change), but in that year the first of the extra-solar planets or exoplanets was confirmed. ... Another is one of the most Earth-like worlds yet discovered . ...

... ESO Science Newsletter August 2014 . 28 Aug 2014 . ... This newsletter is a summary of recent ESO Science Announcement items. Follow the links or visit ESO Science Announcements to read more. ... ALMA Early Science observations, Cycle 1 and Cycle 2, will be interrupted, as foreseen, from the beginning of September until end of November. ... ESO Workshop, Vitacura, Santiago, Chile, 13тАУ17 April 2015 . ... You are receiving this newsletter because you subscribed to the ESO Science Newsletter. ...

... We have made observations of the Perseus cluster with the Westerbork Telescope at 610 MHz. ... Several newly detected sources are identified with cluster galaxies. ... No evidence is found for the existence of the previously reported ~ 65'x25' cluster halo, 3C 84B. Key words: radio galaxies - clusters - tailed radio sources buoyancy The Perseus Cluster of galaxies is one of the most fascinating systems accessible to extragalactic astronomers. ...

The Astronomical Society of Australia has been asked by STANDARDS AUSTRALIA to compile a list of "designated" optical observatories that are valuable resources for (i) research, (ii) education and (iii) community use. The ASA is the final arbiter of whether any particular observatory is so designated. ... Upon receipt of your application form, your observatory will be entered on a list of "Pending Designated Observatories" on the ASA Home Page. ... It will be emailed for you. ... Email . ...

... Telescopes . ... The time requests are accepted in an electronic version with on-line form in Russian or English. ... Unregistered request will be disregarded by the Large Telescopes Programm Committee. In exclusive cases the secreatry of the Committee is entitled to accept an observational time request given permission of the Chairman of the Committee or the director of the SAO RAS. The Program Committee considers generally one time request submitted by the principal applicant. ...

... Институт прикладной математики им. М.В.Келдыша . БАЛЛИСТИЧЕСКИЙ ЦЕНТР . О Центре . ... Баллистический Центр Института прикладной математики им. М.В.Келдыша РАН . Баллистический центр (БЦ) ИПМ им. М.В. Келдыша создан по предложению С.П. Королева и М.В. Келдыша в 1965 году. На него были возложены работы по баллистико-навигационному обеспечению (БНО) управления полетом пилотируемых кораблей и автоматических космических аппаратов научного и народно-хозяйственного назначения. ...

... We report on the preliminary results of experiments using a Bayesian cluster method to cluster objects present in photographic images of the POSS-II. ... We believe that the application of such algorithms to large-scale astronomical sky surveys can aid in cataloging the detected objects, and may even have the potential to discover new categories of objects. ... We have thus started to explore new clustering analysis and unsupervised classification techniques for this task. ...

... Comments, Opinions Publications Dnepr Program . Dnepr launch record 17 August 2011. Cluster Launch of Dnepr LV 22 August 2013 KOMPSAT-5 Launch 21 November 2013. Dnepr Cluster Mission 2013 19 June 2014. ... ISC Kosmotras announces signing of a launch contract with T B?TAK Space Technologies Research Institute (T B?TAK UZAY) for injection of RASAT spacecraft - the first Earth observation satellite designed and manufactured in Turkey by Dnepr LV in 2010. ... Dnepr LV Performance . ...

NASA JOHNSON SPACE CENTER ORAL HISTORY PROJECT BIOGRAPHICAL DATA SHEET NAME: Richard Horace Battin O RAL H ISTORY: 18 April 2000 EDUCATIONAL BACKGROUND: S.B. in Electrical Engineering, Massachusetts Institute of Technology , Cambridge , Massachusetts , 1945 Ph.D. in Applied Mathematics, Massachusetts Institute of Technology , Cambridge , Massachusetts , 1951 J OBS BEFORE NASA INVOLVEMENT: Instrumentation Lab, ... Battin, Richard H. Space Guidance and Navigation. ...

Last time we saw that flat rotation curves for galaxies, when measured in galaxies with extended gas distributions, provides unambiguous data that shows the mass distribution is dominated by an unseen, spherical halo. ... Perhaps only galaxies with extended dark matter halos are capable of retaining large gaseous extents? . ... Clusters of Galaxies: . ... The case of the Cancer cluster: . ... Below is the velocity distribution of galaxies in the Cancer cluster: . ... What's going on in Cancer? ...