... 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. ...

... Tonight's Sky . ... Sky this Month . ... Star Atlas . ... stars . ... The Sky This Week: April 1 - 10 . ... Observing springtime deep-sky objects with a large telescope . ... Why do some stars appear to flash a variety of different colors when you look at them through a telescope? ... So, Earthт??s atmosphere will bend some colors from especially bright stars more so than others, which makes the source look like itт??s flashing colors. Get instant access to subscriber content on Astronomy.com! ...

... Inside the Eagle Nebula . ... A closer look of the Eagle Nebula, however, shows the bright region is actually a window into the center of a larger dark shell of dust. ... Annular Eclipse: The Ring of Fire . ... A photogenic group of nebulae can be found toward Chamaeleon, a constellation visible predominantly in skies south of the Earth's equator. ... A Fleeting Eclipse . ... Galaxy NGC 4388 Expels Huge Gas Cloud . ... NGC 4388 has a bright energetic nucleus and so is classified as an active galaxy....

If you go out tonight and look up at the full Moon, and you're like most people, you'll probably see the face of a man, or, alternatively, a rabbit superimposed on the bright disk of the Moon. ... When people look at the full Moon, they often see either a Man in the Moon (left) or a rabbit in the Moon (right). ... The Face on Mars is a naturally occurring rock outcropping that just happens to look like a face when lit from the side. ... The Face on Mars,'' Odyssey , October 1991, page 12. ...

... In temperate latitudes, this is a good time to see halos formed by clouds of ice crystals high in the atmosphere where the temperature is always well down below -30 deg. ... The most prominent halos, however, appear quite close to the sun where it can be uncomfortably bright to look. ... In a sense, halos are like rainbows, glories and coronae in that they require the presence of a bright source of light, the Sun or the Moon, and water floating in the air. ...

Yesterday I got a fragment (first 12 disks of 43 total) of Merlin beta 9.014 (string appeared in kernel and drivers; cmd.exe reports 9.012). ... Those 12 disks appeared to be sufficient to pass 1st phase of installation and run Merlin off Maintenance Desktop. ... 1) HPFS 2MB cache limit is still there. ... InfoPM shows about the same graphics performance as on Warp 3.0 (slightly worse on some operations). ... Looks like at least keyboard layout will be easily customizable in Merlin. ...

... 2014 January 29 . Jelly Donut Shaped Rock Appears on Mars . Image Credit: Mars Exploration Rover Mission , Cornell , JPL , NASA . Explanation: What if a rock that looked like a jelly donut suddenly appeared on Mars? ... Even so, the rock's unusual light tones surrounding a red interior created interest in its composition -- as well as causing it to be nicknamed Jelly Donut . ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ... A service of: ASD at NASA / GSFC . ...

... Opening times 7 pm - 9 pm Digital Theatre Show 7.30 pm (Suitable for family groups) Booking is Essential Tel: 028 3752 3689 Armagh Planetarium is open from Mon 29th Oct Sat 3rd Nov 2007 Daily opening hours: 11.30am-5.00pm For further information and a list of show times visit www.armaghplanet.com Booking is Essential Tel: 028 3752 3689 Prices Adults 6.00 per show Children (under 16) / Senior Citizens (65 yrs +) 5.00 per Last Revised: 2007 October 29th . ...

... Archives . ... All models are wrong, but some are useful. ... One of the most frequently cited quotes appeared in an article, titled The End of Theory: The Data Deluge Makes the Scientific Method Obsolete which I liked it very much because it cited the updated maxim by Peter Norvig, Google?s research director, . ... The article addressed perspectives of the new Petabyte data analysis era, where the traditional modeling and testing are not likely feasible. ... Chandra Blog . ... SAMSI AstroStat Prog....

I like a lot astronomical pictures: so I start collecting some appeared in Internet, from various sources as ESO, Nasa, JPL, and many other astronomical sites. ... Some images are copyrighted, so look and enjoy, but do not use for profit. ... Mars and NASA Pathfinder site. Jupiter . ... Shoemaker-Levi impact on Jupiter . Comets and associated images . ... Messier catalog full set of images. ... Ready to print postscript version of some images . My Home Page . Arcetri IR Home Page ...

Astronotes Armagh Planetarium's Stellar Blog! ... This image combines orbital imagery with 3-D modelling to show flows that appear in spring and summer on a slope inside Mars' Newton crater. ... Warm season flows on a slope in Newton Crater, possible evidence of salty liquid water active on Mars today. Image credit: NASA) . ... Frozen water is common on and under the surface of Mars but these images are the best evidence to date for the presence of liquid water on the Martian surface today. ...

. Search this album . Gallery . :: Public Events . :: Opening of Canberra Astronomical Soc's nтАж . :: Some strange people turn up at events like thтАж . Sidebar Left . Sidebar Top . No Sidebar . Sidebar Bottom . Sidebar Right . View full size . Title: Some strange people turn up at events like this . File name: CAS_XmasGrand_Opening_2004_003.jpg . Dimensions: 504 x 378 px . Page: 1 2 11 12 13 14 15 16 17 18 19 20 21 23 24 . Powered by Gallery 3.0.9 (Chartres) . Login

... HST . ... APT . ... HST Overview . Overview . ... Phase I Proposing . ... The amount of memory that is needed by APT is variable depending on the size of your proposal and the amount of work you try to do in one particular session. ... You can run into memory problems with APT even if your machine has 4 GB of memory. ... Show Memory Monitor). This monitor will show you APT's currently allocated memory (which will likely be the maximum heap size), and how much memory APT is currently using. ...

ATM Forum Message . Forums: . ... Discussion Forums | ... Off Topic: Looking For Help With Optical Device-like A Borescope . Forum List | ... Post Message | ... I'm looking for some help from you guys, many of whom are likely experts in optical design.. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

The Sun's corona . ... For instance, short "plumes" rising from the polar regions of the Sun look very much like field lines coming out of the end of a bar magnet, and they therefore suggest that the Sun, in addition to the intense fields of sunspots, also has a global magnetic field like the Earth's. Arches above the . Sun's surface . ... It is brightest near sunspots, whose arched field lines apparently hamper the outflow of solar wind which carries away energy and helps cool the corona. ...

Within the Hubble Ultra Deep Field there are approximately 10,000 discrete objects. ... Most of these objects are very small and likely have masses in the range of 10 5 to 10 7 solar masses. Note the mass of the Milky Way galaxy is 10 12 solar masses. ... Finally, for you cosmologists/experts out there this ultra deep field is quite consistent with what was seen in the original Hubble Deep Field 5) don't necessarily have small angular diameters. ...

There are two large banks in Puerto Rico, Banco Popular and Citibank, and a number of other banks and "Cooperativas de Ahorros" (Credit Unions or Savings and Loans). Both large banks have branches in Arecibo. ... Banco Popular is the largest bank; there are branches everywhere (but not within 10 km of the Observatory). ... The name may be more familiar to people in the States (people report having difficulty cashing a check from Banco Popular in the midwest), but this may just be a rumor. ...

... Watchouts . ... Help . If your warning looks like: Event list does not contain filtering information with the expected structure. Calculated exposure information is not reliable. you should take it very seriously . The EXPOSURE keyword values calculated by evselect / xmmselect are likely to be wrong. ... E.g. : (TIME in [71514000:71528400])|| ... Pages maintained by SAS librarian . Any question about SAS should be addressed to the XMM-Newton help desk . ...

The Emu in the Sky and Other Stories Ray Norris When Europeans arrived in Australia in 1788, their navigators probably knew less about the southern sky than many of the Aboriginal people that they drove from their land. ... The project has two parts. ... More information on the Aboriginal Astronomy project and on the Sydney Rock Engravings can be found on www.atnf.csiro.au/research/AboriginalAstronomy/ and www.atnf.csiro.au/people/rnorris/SydneyRockArt/ respectively. ...

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