... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2014 February 17 . The Cosmic Web of the Tarantula Nebula . ... Were it placed at the distance of Milky Way's Orion Nebula , only 1,500 light-years distant and the nearest stellar nursery to Earth, it would appear to cover about 30 degrees (60 full moons ) on the sky. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...

... Fox Fur, the Unicorn, and a Christmas Tree . ... A star forming region ( NGC 2264 ), the complex jumble of cosmic gas and dust clouds is about 2,700 light-years distant and mixes reddish emission nebulae excited by energetic light from newborn stars with dark interstellar dust clouds. ... Its cast of cosmic characters includes the Cone Nebula (far left), the Fox Fur Nebula , whose convoluted pelt lies just below S Mon, and the Christmas Tree star cluster. ... Emission Nebula IC 1396 . ...

... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...

Why areNuclear Star Clusters interesting? 1) Many -- if not all ­ nuclear star clusters appear to be young, or at least have a young population of stars. ... 3) If nuclear clusters indeed form in the galaxy center, their impact on the dynamics of stars and gas in the central region of the host galaxy needs to be understood, because it can potentially influence the galaxy morphology. For example, it has been suggested that nuclear clusters can destroy stellar bars and thus form galaxy bulges. ...

. " The Arecibo Observatory is sponsored by the National Science Foundation. Any opinions, findings and conclusions or recommendations . expressed in this publication are those of the author(s) and do not necessarily reflect the views of the National Science Foundation."

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. February 7, 1998 . COBE Hotspots: The Oldest Structures Known . ... After computer processing to remove contributions from nearby objects and the effects of the earth's motion , the map shows temperature variations in the early Universe as red "spots". These spots are the oldest, most distant structures known. ... About APOD > . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Comets and Asteroids . ... Image credit:ESO/J.Emerson/VISTA. ... However others are less pessimistic and it has even been claimed that the mysterious ?Wow! signal? received in 1977 originated from the direction M55.б  Sadly, this still unexplained pulse of radio energy originated from a location rather to the northwest of M55 so I doubt if the source was this cluster (if indeed the signal was genuinely of extraterrestrial origin). ... Mysterious Wow! ...

... Primordial theory review : Dick Bond . Defects and the CMB review : Andy Albrecht . ... Gravitational wave contribution to CMB anisotropies : V.B. Lukash and E.V. Mikheeva . C_l from cosmic strings : Lloyd Knox . Some aspects of CMB anisotropies induced from topological defects : Mairi Sakellariadou . ... CMB anisotropies from scaling sources : Ruth Durrer . ... SZ observations I : Sarah Church . ... Holes in the microwave sky? ... Detecting cosmic strings in the CMB : James Robinson . ...

... stars . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Wide Field Imager snaps cosmic gecko . ... This image from the Wide Field Imager on the MPG/ESO 2.2-meter telescope at ESOт??s La Silla Observatory in Chile shows the bright star cluster NGC 6520 and its neighbour, the strangely shaped dark cloud Barnard 86. ... This part of the constellation Sagittarius the Archer is one of the richest star fields in the whole sky т?? the Large Sagittarius Star Cloud. ...

Many intermediate-age star clusters in the Magellanic Clouds exhibit very unusual features in their colour-magnitude diagrams that suggest they may have formed their stars over periods spanning hundreds of millions of years per cluster. ... Nonetheless, this interpretation is enticing in the context of the formation of ancient globular clusters, which almost always exhibit puzzling abundance patterns that apparently require multiple episodes of star formation to explain. ...

Photon Scattering: Basic Principle of Photon Scattering . Audio Narration is available . No Scattering: Photon Source and Detector . ... For optical photons, scattering goes as wavelength to the -4 power. In the case of blue photons compared to red photons, this means that blue photons are about 10 times more likely to get scattered than red photons. ... Watch the blue photons scatter away from the detector . ... Interstellar dust make stars appear redder than they really are . ...

... ESO, the European Southern Observatory . ... ESO's Governing Bodies . ... Travel and Contacts . Travel to ESO Headquarters . ... Green ESO . ... Survey Telescopes . ... Star Clusters . ... Stars@ESO . ... View shopping cart . ... ESO 3.6-metre telescope . ... MPG/ESO 2.2-metre telescope . ... ESO 1-metre Schmidt telescope . ... VST . ... The glowing jumble of gas clouds visible in new image make up a huge stellar nursery nicknamed the Prawn Nebula. ... Milky Way : Nebula : Type : Star Formation . ...

Next: M.E. Bailey, Director Up: Research Previous: C.S. Jeffery, Research Astronomer Contents . ... How do Stars Form? ... Other Work and Activities . ... The interaction of young stars with their surroundings are accentuated within Herbig-Haro Objects, where streams and `bullets' of ejected gas impact on the ambient molecular clouds. ... The astrophysical jets are spectacular. ... Michael Smith and collaborators have searched for, and found, the first evidence of rotation within the jets. ...

The SAO Summer Intern Program . APPLICATION DEADLINE: February 1 st , 23:59 ET (Before midnight), 2016 THE 2016 DEADLINE FOR ALL APPLICATION MATERIALS IS . FEBRUARY 1 st , 2016. THE ELECTRONIC APPLICATION FORM WILL LOCK AT 23:59:00 (Midnight) ET ON FEBRUARY 1 st , 2016. ... Students are exected to be in residence at the SAO for the full duration of the program. ... The SAO Summer Internship program is unable to fulfill pre-arranged partnerships between applicants and scientists. ...

... A faint, dusty rose of the northern sky, emission nebula IC 410 lies about 12,000 light-years away in the constellation Auriga. The cloud of glowing hydrogen gas is over 100 light-years across, sculpted by stellar winds and radiation from embedded open star cluster NGC 1893. ... These "tadpoles" (seen just below center) are regions of denser, cooler gas, and more slowly resist the erosive radiation from the hot stars. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... НЕПРЕРЫВНОГО МАТЕМАТИЧЕСКОГО ОБРАЗОВАНИЯ . ... Кружок ?Олимпиады и математика? ... Московская математическая олимпиада . Заочный математический конкурс . ... Устные математические олимпиады . Олимпиады по программированию . Математический праздник . Математические регаты . ... Математические бои . Олимпиада по геометрии им. И.Ф.Шарыгина . ... Программа ?Math in Moscow? Научные конкурсы . Творческий конкурс . ... График олимпиад . ... XXVII Математический праздник . ...

Lectures . ... 100 Years of Cosmology: From Spiral Nebulae to the Cosmic Microwave Background.тАЭ ? ... Michael Way, astronomer/computer scientist at NASAтАЩs Ames Research Center and its Goddard Institute of Space Studies, will give the first lecture of the AAAтАЩs 2009-10 lecture series Friday, October 2 when he discusses тАЬ100 Years of Cosmology: From Spiral Nebulae to the Cosmic Microwave Background.тАЭ The free public lecture is at 6:15 p. m. at the Kaufmann Theater of the AMNH. by . ...

... Star Birth Nebulae . ... The formation of the objects we can see in space, including stars, nebulae , and the objects that are actually collections of other objects (e.g., star clusters and galaxies ), started with these raw materials. Gas makes up roughly 99% of the raw material found in space. ... Dust in space is typically found in the same clouds among the stars where gas is found. ... A galaxy is a collection of many millions or billions of stars, nebulae, and other cosmic objects. ...