... Cassini Spacecraft Crosses Saturn's Ring Plane . ... Credit Copyright: Cassini Imaging Team , ISS , JPL , ESA , NASA Explanation: If this is Saturn, where are the rings? ... Later that century, it became understood that Saturn 's unusual protrusions were rings and that when the Earth crosses the ring plane , the edge-on rings will appear to disappear. ... In modern times, the robot Cassini spacecraft orbiting Saturn now also crosses Saturn's ring plane. ... Saturn: Bright Tethys and Ancient Rings . ...

... 2010 February 15 . Cassini Spacecraft Crosses Saturn's Ring Plane . ... Later that century, it became understood that Saturn 's unusual protrusions were rings and that when the Earth crosses the ring plane , the edge-on rings will appear to disappear. ... In modern times, the robot Cassini spacecraft orbiting Saturn now also crosses Saturn's ring plane. ... Saturn's thin ring plane appears in blue, bands and clouds in Saturn's upper atmosphere appear in gold. ... About APOD | ...

... 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. ...

February 2008 Astronotes 1 Hot spots of Saturn pole of Saturn. ... But at the start of January 2008 another image was taken not of the planet's south pole, but of the north pole and a similar hot spot was discovered. "...for the past ten years it has been winter at Saturn's north pole " This warming came as a shock because for the past ten years it has been winter at the north Polar View This infra red composite of images from Cassini shows Saturn's mysterious polar hexagon. ...

... About ATNF overview . ... Governance overview . Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Our people overview . ... Publications overview . ... Careers overview . ... MRO Support Facility . Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Current telescope status . ... Australia Telescope Online Archive (ATOA) . ... Scientific support of facilities . ... Astrophysics overview . ... Meetings . ...

Mathilde . ... On June 27, 1997 the Near-Earth Asteroid Rendezvous (NEAR) spacecraft flew flew past asteroid 253 Mathilde. ... On June 27, 1997 NEAR made a spectatular 25 minute flyby of Mathilde which resulted in more than 500 images of a dark, crater-battered little world that dates to the beginning of the solar system. ... This first image of asteroid 253 Mathilde, returned by the NEAR spacecraft just before 10:00 AM EDT on June 27, 1997, was taken from a distance of 1800 kilometers (1120 miles). ...

... On the morning of Thursday, 26 February, amid the Gal pagos Islands, the Sun will fade from view. Not the culmination of ancient prophecy, but none less mystical, Earth's small Moon will be executing a slow slide past the enormous Sun. ... And anyone living in southern North America, Central America, northern South America, or on islands and cruise ships in the Caribbean Sea will, weather permitting, have the opportunity to experience the wonder of a solar eclipse. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . On Friday 15th February the recently discovered Apollo-class near-Earth asteroid 2012 DA14 will make a close pass by the Earth. The asteroid will come within about 34,000 km (21,000 miles) of the centre of our planet at 7.26 p.m. That is, within the ring of geostationary communication satellites which orbit at some 35,800 km above the surface of the Earth. ... Last Revised: 2013 February 11th . ...

... Circumstellar disc of beta Pictoris: constraints on grain properties from polarization. To appear in the Astronomy & Astrophysics . abs , src , ps ] . ... Dust influx to Titan from Hyperion . ... abs ] . ... Characteristics of bulges and disks in interacting galaxies . ... Dust grains around Herbig Ae/Be stars: porous, cometary-like grains? ... To appear in the Astronomy & Astrophysics Supplement . ... Finally, Links may lead you to more options (e.g. via the LANL preprint system). ...

... Laboratory for Spectroscopy of Molecular Structures . ... News . ... A new article entitled Description of optical properties of cholesteric photonic liquid crystals based on Maxwell equations and Kramers-Kronig relations has appeared in Physical Review E. Congratulations to Grigoriy Ksyonz on his first publication! . 25 th February 2013 . ... 22 nd November 2012 . ... 22 nd February 2012 . 4 th Workshop on Liquid Crystals for Photonics 2012 will take place in Hong Kong December 9-11, 2012. ...

... Today this year's largest group of sunspots will cross the Sun's central meridian. ... The next day, the number of spots in the group reached five, and the day after, on June 2nd, it was possible to count thirteen sunspots on solar disk, which had been clear prior to this. ... This year's two most powerful active areas, which passed across the solar disk at the beginning of May, 2009, are set to appear in the Sun's eastern sector in two days, on June 6th. ...

... Most Important Journals . Less Popular Astronomical Journals . Physics . Space, Selectial mechanics, .. Russian Journals . ... Astrophysics & Astronomy . ... Astronomical Journal . ... New Astronomy . ... Publications of the Astronomical Society of the Pacific . ... STScI News . Space Telescope Insitute Newsletter . ... Journal of Astronomical Data . ... Journal of High-Energy Physics (mirror in CERN ) [astro, grav, hi-energy .. ... Journal of Experimental and Theoretical Physics . ...

The First Law (1): Energy is Conserved in a closed system: . ... We usually consider work and heat flow as the two kinds of energy . The Second Law (2): The Law of Entropy: . ... The amount of disorder increases . ... You can not go from a disordered system to an ordered system without inputting more energy (this is the most important attribute of the second law) . ... In no way can we recover work of that this disordered system without putting energy into the system. ... More on Thermodynamics . ...

Australasian Science February, 2009 Page: 44 General News Region: National Circulation: 9000 Type: Magazines Science / Technology Size: 307.82 sq.cms Monthly back Cosmic Coincidence Is Not So Surprising T he "cosmic coincidence" is the term given to the observation that we seem to exist at an odd point in the Universe's history. ... The cosmic coincidence lies in the fact that the point where the proportions of matter and energy in the Universe crossed appears to have occurred relatively recently. ...

... Submitted by Al Takeda on 02/17/2013 21:45:36 . Asteroid 2012 DA14 . Asteroid 2012 DA14 made a close pass to the Earth on February 15, 2013. ... This movie was produced using the ATMoB's 10-inch Meade Schmidt-Cassegrain telescope located in the Clamshell observatory. ... Even though my exposure was 1-second in duration, 2012 DA14 was easy to see and the Friday night DVD class members were able to see it in real time. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... The most spectacular view however is from space, where large areas of aurora can be observed simultaneously, even the entire polar cap. ... Such pictures often show a continuous ring of aurora around the polar cap (picture above), caused mostly by electrons leaking out along magnetic field lines, from the plasma sheet of the Earth's magnetic tail. ... Field lines from the auroral oval are believed to lead to the plasma sheet. ... A near-Earth circular polar orbit has many uses. ...

... The most spectacular view however is from space, where large areas of aurora can be observed simultaneously, even the entire polar cap. ... Such pictures often show a continuous ring of aurora around the polar cap (picture above), caused mostly by electrons leaking out along magnetic field lines, from the plasma sheet of the Earth's magnetic tail. ... Field lines from the auroral oval are believed to lead to the plasma sheet. ... A near-Earth circular polar orbit has many uses. ...

Home: 80-1-346, Kashirskoye shosse, 115569 Moscow Russia . ... Department of Mathematics February 1996 -- present Senior Researcher Institute for System Research Russian Academy of Sciences Moscow , Russia February -- May 1994, Visiting Researcher April -- July 1996 MPIM - Bonn, Germany November 1990 -- January 1996 Leading Researcher Institute of New Technologies Moscow , Russia September 1991 -- present Professor Higher College of Mathematics Independent University ...

Astronomy Discussion Forums . ... Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... New Model: How Do The Sun And Moon Appear To Move Across The Sky . ... Post Message | ... focused on the Sun and the Moon as they appear from the given location of the Earth surface: . ... www.astronomy.net . About Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Observing . ... Home Education Workshops at Adorama Astronomy Workshop: Observing Variable Stars from the City ? February 15, 2015 . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Presented by€а Adorama €аFor the Amateur Astronomers Association of New York . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...