... Tonight's Sky . ... The Magazine . ... Star Atlas . ... An artificial comet holds secrets to Earths life . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... The planet has extreme temperature swings and perhaps active lava flows. ... A digital supplement to Astronomy magazine. ... Join TravelQuest International with Astronomy and Discover magazines on one of three great tour options surrounding this celestial spectacle . ... Astronomy Magazine . ...

... Recherche dans le site : . Ciel Espace, le magazine qui vous guide toujours plus loin . ... les plus belles images de l'Univers d†йcrypt†йes pour vous . ... 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 La foreuse de Curiosity pose probl†иme . ... Dans les prochaines semaines, Curiosity doit utiliser sa foreuse pour la premi†иre fois sur un terrain appel†й Point Lake. ...

NASA Mars Orbiter . ... The Mars Global Surveyor mission is designed as a rapid, low-cost recovery of the Mars Observer mission objectives. The science objectives involve high resolution imaging of the surface, studies of the topography and gravity, the role of water and dust on the surface and in the atmosphere of Mars, the weather and climate of Mars, the composition of the surface and atmosphere, and the existence and evolution of the Martian magnetic field. ...

The night after the John Glenn program, I pitched the terraforming idea to my students. I asked them if they'd like to terraform Mars as a big class project; I wanted to throw the idea to them and see how they would react. Already I had a vision of splitting the class into several groups and having each group take charge of a portion of the project. ... Following my initial idea on how to conduct the project, I split the class into six groups, each student choosing his or her group. ...

... Sensitivity of a Global Search for Planets in Space-Based Astrometric Databases . ... Missions . ... Future Missions and . ... Missions Office . ... Research . ... Space-based astrometric missions, such as Hipparcos and the proposed GAIA and SIM missions, can yield frequently sampled, accurate position measurements for a large number of stars with uniform accuracy. Using Monte Carlo simulations, we assess the probability of identifying planets around nearby stars in such databases. ...

... Credit: MGS , JPL , NASA Explanation: Completing a 10 month journey, another spacecraft from Earth arrives at Mars today . The Mars Global Surveyor (MGS) is scheduled to fire its main rocket engine for 22 minutes at 6:17 p.m. PDT and enter a highly elliptical orbit , with a low point 186 miles and a high point 34,800 miles above the surface of Mars . ... Publications with keywords: Mars - Mars Global Surveyor . ... Mars in View . Victoria Crater on Mars . ... Inside Victoria Crater on Mars . ...

... физико-математический журнал "Квант" . ... Редакция журнала "Квант" . ... Указатель материалов по математике . ... Статьи по физике . ... Приложения к журналу "Квант" Номера журналов в формате djvu . ... 13 марта 2012 года Президиум РАН назначил главным редактором журнала академика Алексея Львовича Семенова . ... На сайте можно найти выпуски журнала за все годы , как и выпуски Библиотечки Кванта и другую литературу по математике и физике . ... Copyright ї1970 2012 Редакция журнала "Квант" . ...

... 2007 July 25 . Global Dust Storms Threaten Mars Rovers . Credit: Mars Exploration Rover Mission , Cornell , JPL , NASA . Explanation: Will global dust storms terminate the robotic Martian rovers? Over the past month, windy dust storms have blocked much needed sunlight from reaching the solar panels of both the Spirit and Opportunity rovers exploring Mars. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . NASA Web Privacy Policy and Important Notices . ...

... Mars in 3D! . Robert Naeye, Editor in Chief, Sky and Telescope . ... Join Sky Telescope Editor in Chief Robert Naeye as he presents many dozens of the latest and best images of Mars in spectacular 3-dimensions. ... ATMoB member Robert Naeye is Editor in Chief of Sky Telescope, the world’s most respected and influential popular astronomy magazine. ... He returned to Sky Telescope in June 2008 to serve as Editor in Chief. ... Mar . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... Astronomy search engine . ... PhysicsWeb Home Page . ... Sternberg Astronomical Institute . ... Astro Space Center Home Page . ... Landau Institute for Theoretical Physics . ... Astronomy and Space Physics Dept of Kiev University . ... NATIONAL RADIO ASTRONOMY OBSERVATORY Home Page . University of Hawaii - Institute for Astronomy . ... Space Telescope Science Institute Home Page . ... Sky & Telescope: The Essential Magazine of Astronomy . ... Springer LINK - Physics Online Library . ... Home . ...

... OF MARTIAN MISSION ELEMENTS . At present, RSC Energia has developed a conceptual configuration for the interplanetary orbiter where the crew will work during the entire interplanetary transit. ... Interplanetary expedition vehicle assembly plan has been developed. ... A program has been developed for building a series of small spacecraft based on the interplanetary vehicle concept with electrical propulsion main engines and solar arrays. ... Official WEB-site of S.P.Korolev RSC Energia . ...

... Master . Master net Homepage . ... Ten years ago it was realized that robotic observatories boost the capabilities of astronomical observations of non-stationary and short-lived phenomena in the Universe. ... The first Russian robot-telescope MASTER was developed in 2002 and installed nearby Moscow. ... OAO MO "Optica" has mastered the production of such systems. The workshop is devoted to the results achieved by MASTER-net, that recently stretch over the globe from Blagoveshensk to Argentina. ...

Main planetology and astrophysics scientific tasks of gamma-spectrometry GRS and detector HEND . ... The origin of Mars . The ratio of natural radioactive isotopes 19 K/ 92 U will allow to estimate the temperature of proto-planetary cloud in the point of Mars creation . ... Abundance of main elements at valleys and at plateaus will allow to determine their ages . ... Water as a factor of Mars global evolution, the presence of water and water ice under the surface in the present time . ...

Next: Infrared Surveys with CIRSI--Scientific Objectives and Data Analysis . ... Two European survey missions are featured in the current ESA science program: Planck, a Cosmic Background Radiation mission, and GAIA, an astrometric mission. Both missions require global iterative processing over the spacecraft data in the spatial and time domains. ... Figure 1: Interfaces for Data. ... Processing for survey missions requires data to be accessed readily in both the time and spatial domains. ...

. The XMM-Newton website has moved to the following location: . http://www.cosmos.esa.int/web/xmm-newton

... I forgot to mention that the naming of the asteroid for Martin McKenna was suggested by John McConnell, who was the first amateur astronomer in Ireland to have an asteroid named after him: No 9929 McConnell. ... NEW ASTRONOMY MAGAZINE FOR AMATEUR ASTRONOMERS - PRACTICAL ASTRONOMER "Astrum Publishing is pleased to announce the publication of a new printed monthly magazine dedicated to amateur astronomers. ... It features a unique appeal to global amateurs. ... Clear skies, Terry Moseley . ...

Next: Recording Systems Control Up: Recording Systems. ... SCHED was originally written in about 1979 as the scheduling program for global VLBI observations using the Mark II recording system. That was a system capable of recording 4 Mbps on video tape recorders. ... The wide band recording system in use for VLBI for many years was the Mark III system. ... However, SCHED was capable of scheduling Mark III observations on systems that used the VLBA control files (VLBA, VLA, and Green Bank). ...

... 29a. Satellite looking up . ... 29e. Explorers of distant space . Space Index . This groups includes about 200 communication satellites ("comsats") scattered in synchronous orbits above the Earth's equator. ... 6 Earth radii (42,000 km or 26,000 miles), these satellite make one orbit per day, ( sidereal day of 23 h 56 min--see here ) and therefore as the Earth turns, they always stay above the same ground station. ... Next Satellite Class: #29e Missions to Planets and to Distant Space . ...

... Archives . ... If getting the first derivative (score function) and the second derivative (empirical Fisher information) of a (pseudo) likelihood function is feasible and checking regularity conditions is viable, a test for global maximum (Li and Jiang, JASA, 1999, Vol. 94, pp. 847-854) seems to be a useful reference for verifying the best fit solution. I didn?t see any ways to confirm that best fit results from XSPEC or Sherpa are a global maximum without searching whole parameter space. ...

... General Information . ... The French-Russian Poncelet Laboratory organizes a conference on "Global fields", October 25-28, 2011, to take place at the Independent University of Moscow. ... It involves many research areas such as analytic number theory, algebraic number theory, arithmetic geometry or algebraic geometry, and it has got many applications to very concrete problems, for example to problems coming from information theory (coding theory and cryptography). ... Poncelet Laboratory home page ....