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Sloan digital sky survey

Sloan digital sky survey
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time-lapse animations A few dynamic challenges... Everybody knows that the Universe is dynamic. Even absolute beginners immediately recall the day/night sequence, the ever-changing lunar phases, the year's seasons, etc. The Universe has its own time-scale though. An increasing number of software packages does allow us to accelerate sky events, but the fact is that reality is hard to duplicate. Fortunately, I am just one of the many amateurs that have so far attempted and did managed to produce astronomical time-lapse animations. I must confess that I do have two more ambitious projects. image (264KB) small animation (133KB) large animation (463KB) As you can imagine, this time-lapse animation took almost a month to complete. LUNAR sunrise animation (109KB) Partial SOLAR ECLIPSES colourized image (53KB) grayscale image (39KB) animation (365KB) large mosaic (142KB) small mosaic (70KB) large animation (441KB) large 3D-animation (344KB) Total LUNAR ECLIPSE Partial rotation of MARS animation 99/05/10 - Y/M/D (38KB)

Ngram Viewer NASA Remembers Those Lost Pursuing Discovery And Exploration MEDIA ADVISORY : M11-014 NASA Remembers Those Lost Pursuing Discovery And Exploration WASHINGTON -- NASA Administrator Charles Bolden and Deputy Administrator Lori Garver will lay a wreath at the Arlington National Cemetery in Virginia at 10 a.m. EST, Thursday, Jan. 27, to commemorate the agency's National Day of Remembrance. NASA has an agency-wide Day of Remembrance every January to honor the fallen crews of Apollo 1, space shuttles Challenger and Columbia, and all of those who have given their lives in the cause of exploration. Journalists who want to attend the wreath-laying ceremony must contact the Arlington National Cemetery public affairs office at dave.foster1@us.army.mil by 4 p.m., Jan. 26, for access information. At 10:30 a.m., NASA's Kennedy Space Center Director and former astronaut Bob Cabana will take part in a wreath-laying at the Space Mirror Memorial at the Kennedy Space Center Visitor Complex in Florida.

MAGIC - The MAGIC Telescope Web Server on La Palma Rh9 : Communiquer à l'ère numérique. Regards croisés sur la sociologie des usages Dans Communiquer à l’ère numérique, Julie Denouël et Fabien Granjou réunissent les contributions de dix chercheurs qui proposent, chacun à leur façon, de mettre en discussion la manière dont les sciences sociales ont considéré la question des usages depuis trois décennies. Compte tenu du phénomène big data que nous connaissons actuellement où la quête de la valorisation des traces numériques fait question, la « nécessaire vigilance épistémologique » (p. 34) que Julie Denouël et Fabien Granjou mettent en avant dans leur introduction (p. 1-45) apparaît des plus pertinentes. Cet ouvrage a en effet pour vocation de souligner les enjeux théoriques et méthodologiques de l’enquête sur les usages. Josiane Jouët (Chapitre 1, p. 45-90) introduit le versant critique de l’ouvrage en retraçant l’histoire de la sociologie des usages à partir des évolutions sociotechniques, politiques, économiques et culturelles.

stellarium FiveThirtyEight NASA Releasing First Views Of The Entire Sun On Super Sun-Day MEDIA ADVISORY : M11-025 NASA Releasing First Views Of The Entire Sun On Super Sun-Day WASHINGTON -- NASA will score big on super SUN-day at 11 a.m. EST, Sunday, Feb. 6, with the release online of the first complete view of the sun's entire surface and atmosphere. Seeing the whole sun front and back simultaneously will enable significant advances in space weather forecasting for Earth, and improve planning for future robotic or crewed spacecraft missions throughout the solar system. These views are the result of observations by NASA's two Solar TErrestrial Relations Observatory (STEREO) spacecraft. Launched in October 2006, STEREO traces the flow of energy and matter from the sun to Earth. STEREO is the third mission in NASA's Solar Terrestrial Probes program within the agency's Science Mission Directorate in Washington. The Johns Hopkins University Applied Physics Laboratory in Laurel, Md., designed and built the spacecraft and is responsible for mission operations.

Related:  SpaceScience