An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . THE CHANGING UNIVERSE: EVOLUTION HAPPENS! . c) Changes in the Universe . ... In a universe that is not evolving, we should see as many of these hyper-active galaxy cores in each period of cosmic history. ... An Ancient Universe - Table of Contents . ... The Ancient Universe - The Age of the Expanding Universe - The Age of the Oldest Stars - The Age of Light From Distant Galaxies - The Age of the Chemical Elements | ...

These are very prominent absorption lines is most all galaxies. ... These pair of absorption lines will appear in all the spectra and they should be your principle source for determining the redshift. ... When this applet opens you will see an iconic representation of galaxies in the left hand side of the applet and a target area in the right side of the applet. ... Note: What you are doing in this excercise is identical to what Hubble did in the 1920's and you are using the same galaxies. ...

... Future seminars . ... Long -term evolution of 27 days signal in solar activity and terrestrial magnetic indices - common features and differences ". ... The 27-day signal created by the solar rotation is reflected by the 27-day geomagnetic signal. We study the long-term evolution of the 27 days signal and compare its properties for solar and geomagnetic activity. ... We obtain that 'short' and 'long' period in the 27-days range are differently reflected in the solar and geomagnetic activity. ...

... Searching for Far Out and Wandering Worlds . ... solar system . ... Observe the Solar System . ... Tune into the Asteroid Day press conference . ... Tour the Solar System . ... т??Trojanт?? asteroids in far reaches of solar system more common than previously thought . ... ASTEROIDS . ... Astronomers considered Trojans presence at Uranus unlikely because they thought the gravitational pull of larger neighboring planets would destabilize and expel any uranian Trojans over the age of the solar system. ...

... Aims: Today, large ground-based instruments, like VISIR on the VLT, providing diffraction-limited (about 0.3 arcsec) images in the mid-infrared where strong PAH features appear enable us to see the flaring structure of the disks around Herbig Ae stars. Although great progress has been made in modelling the disk with radiative transfer models able to reproduce the spectral energy distribution (SED) of Herbig Ae stars, the constraints brought by images have not been yet fully exploited. ...

On Wednesday 3rd March 1999 there will be an adjournment debate in the House of Commons, in the name of Lembit pik MP (LibDem, Montgomeryshire) on the threat posed to our civilisation by asteroid collisions with the Earth. A press conference will be held in Room W2 at the House of Commons at 12:00 Wednesday 3rd March. ... Mr. Tate added: " Those mentioning asteroid impacts struggle to be listened to: the whole subject suffers from a substantial giggle factor. ... Tel: (Home) 01980 671380 . ...

... galaxies: bulges galaxies: clusters: general galaxies: clusters: individual: . ... star formation statistics stellar content structure Cosmology ( cosmology :) cosmic background radiation ( cosmology :) cosmological parameters cosmology : miscellaneous cosmology : observations cosmology : theory ( cosmology :) dark ages, reionization, first stars ( cosmology :) dark energy ( cosmology :) dark matter ( cosmology :) diffuse radiation ( cosmology :) distance scale ( cosmology :) early Universe (...

pro prvni_event,event COMMON profily,profil1,profil2 COMMON baze2,prvnilab,prvnidraw,prvnibut, prvni1 ,prvni COMMON pozice,pozice1,pozice2 COMMON kolik,pocet2 COMMON data,kliny, obrazek COMMON uloz, cesta COMMON uloz2,obrazek2 COMMON novy,prvniposlab ; COMMON velikost,s1,s2 widget_control ,event.id,get_ uvalue = uvalue case uvalue of 'CLICK1': ...

... The PCIPS image processing system (Smirnov & Piskunov 1994) has been in development since 1991; the current version is 2.01. ... Key features of the system include: (1) an intuitive graphical user interface (GUI), (2) all functionality is provided by external application modules, which are easily added to the system as they are developed, (3) there is an application program interface (API) for development of custom applications, and (4) the code runs on practically any Intel-based PC. ...

... Apache HTTP Server Version 2.2 . Apache > HTTP Server > Documentation > Version 2.2 > Developer Documentation . ... When using any of the threaded mpms in Apache 2.0 it is important that every function called from Apache be thread safe. ... Casual testing generally won't tell you this either as thread safety problems can lead to subtle race conditons that may only show up in certain conditions under heavy load. ... libsablot.so.0 => /usr/local/lib/libsablot.so.0 (0x401f6000) . ... Yes . ...

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 . ...

... 8, ``Celestial Mechanics'', 2002 Estimation of masses of some minor planets from observations of perturbed bodies O. M. Kochetova Institute of Applied Astronomy, St. Petersburg, Russia The most straightforward method of mass determination of minor planets is the dynamical one which uses the gravitational perturbations produced by minor planet in the motion of other bodies. ... The values of the masses of minor planets (15), (29) and (65) appear to be rather close in both papers. ...

... the radiative transfer equation (RTE) for the randomly-irregular magnetized plasma has been derived on the base of general grounds of the multiple scattering theory . ... Solutions of several absolute tasks of the scattering theory have been obtained (on the optical depth of the ionospheric plasma layer, on the value of radio wave anomalous attenuation, on anomalous refraction, on the backscattered signal intensity for the source being placed within a plasma layer). ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualit†йs . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Exposition des navettes : la Nasa a choisi . ... La plus ancienne navette, et celle qui a le plus voyag†й dans l'espace , sera pr†йsent†йe dans une annexe du mus†йe (le Steven Udvar-Hazy Center, en Virginie), qui expose actuellement Enterprise. ...

. HELLO! HOW ARE YOU? I WONDER! . As you understand, my name is Tanya (KVA - for best friends). My cousin calls me Toussya. My soname is Kondruchenkova. I am seventeen. MY PLANS FOR THE FUTURE .

... The Science Operation Department is composed of Astronomers, Telescope Instruments Operators(TIOs) and Data Handling Administrators(DHAs). ... Astronomers have proposed several methods to quantitatively measure the amount of turbulence above the telescope, which the most common ones is Differential Image Motion Monitor (DIMM). In optical testing, the Hartmann test is the common method to test the quality of optical components. ... Hartmann mask consists of 48 lenses. ...

The project of the informational system creation on the problem of evolution of radio galaxies, as a part of the "Big Trio" project aimed on studing of distant radio galaxies, is designed. This system allows a user to operate with simulated curves of spectral energy distributions (SED) to estimate ages and redshifts by photometry data. Authors use SEDs of several models for different types of galaxies. ... The HTTP and e-mail access is organized to this system. ...

... Authors: A. M. Ghez, et al. arxiv:0808.2868 Измерение потока солнечных 8B нейтрино по данным 246 дней наблюдений на Борексино и обнаружение МСВ перехода вакуум-вещество (Measurement of the solar 8B neutrino flux with 246 live days of Borexino and observation of the MSW vacuum-matter transition) . Authors: The Borexino Collaboration . arxiv:0808.2292 Мультителескопный тайминг PSR J1518+4904 (Multi-telescope timing of PSR J1518+4904) . ... Authors: A.N. Belikov, S. Roser . ...

... Galaxy Evolution Explorer (GALEX) . ... Searching for SZ clusters . ... Baryon content of galaxy clusters and cosmology . ... 3 sigma peaks: Observational Signatures of High Redshift Galaxies and Low Redshift Clusters . CLUSTERS OF GALAXIES . ... Clusters of galaxies seen in X-rays: war and peace . ... Chandra X-ray Observations of Clusters/Groups/Galaxies . ... Common timing features in neutron stars and black holes . ... X-ray luminosity function of low-mass X-ray binaries in galaxies . ...

Circling around magnetic field lines. ... The ring current . Because positive ions and negative electrons drift in opposite directions (see drawing), that motion will create an electric current that circulates clockwise around the Earth when viewed from north. ... How then can the radiation belt and ring current arise? ... Electric fields are able to push trapped particles earthward, and unlike the purely magnetic motion described earlier, an electric field can also energize them. ...