... A recent study found that a type Ia supernova's original star could be anywhere from 0.9 to 1.4 times our Sun's mass. Astronomers use these blasts' brightnesses to estimate distances, so are those measurements now incorrect? ... Get instant access to subscriber content on Astronomy.com! ... If you are already registered on Astronomy.com, please log in below. ...

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JSC Celebrates 40 Years of Human Space Flight . JSC Turns 40 Home | ... An actual Apollo Saturn V launch vehicle which was originally built to take a crew of astronauts to the Moon has been on permanent exhibit since 1978 in the Johnson Space Center’s Rocket Park. ... In September 2001, NASA's Johnson Space Center celebrated 40 years of leading America into space. The history of the center is the history of America's human space flight program. ... Curator: JSC Web Team | ...

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Astronotes Armagh Planetarium's Stellar Blog! ... Planets . ... Our Galaxy . ... Weird and Fun . ... It came from another galaxy: This artistтАЩs impression shows HIP 13044 b, an exoplanet orbiting a star that entered our galaxy from beyond. ... HIP 13044 is one of tens of millions of stars in the тАЬHelmi streamтАЭ, stars that belonged to a dwarf galaxy consumed by our own Milky Way galaxy, some six to nine billion years ago. ... Tweets that mention ESO finds weird doomed planet from another galaxy | ...

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The AstroGuide . ... AstroGuide | ... Forums . ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . The original Black Hole forum is so popular that we added a second. ... Listed Since July 15, 1998 . ... Web Site . http://www.astronomy.net/forums/blackholes2/ . ... Web . www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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Mathematics from the class of 2000 (section B) of the 57th school (in Russian). These problem sets, originally given in seminars, are available in TeX format, PostScript, and as Hewlett-Packard laser printer files. The syllabus "math-student" (in Russian) describes the traditional range of topics studied in math classes. ... Math Competition by Correspondence (in Russian). ... These Zip files contain problems from various years. ...

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... Automated Spectral Classification Using Neural Networks E. F. Vieira Laboratorio de AstrofТРsica Espacial y FТРsica Fundamental P.O.Box 50727, 28080 Madrid, Spain, Email: efv@lae#.esa.es J. D. Ponz GSED/ESA, Villafranca P.O.Box 50727, 28080 Madrid, Spain, Email: jdp@vilspa.esa.es Abstract. We have explored two automated classification methods: supervised classification using Artificial Neural Networks (ANN) and unн supervised classification using Self Organized Maps (SOM). ...

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Large-scale activity in solar powerful eruptive events of November 2004 . by SOHO/EIT data . ... General: disk on 6 Nov , GOES soft X-rays , Dst , Protons . CMEs_LASCO/C2 ; CMEs_LASCO/C3 . 3 Nov 2004, 03:35 1N/ M1.6 , AR 696, N08E45 . LASCO: C2_orig , C3_orig , C2_C3_rd , EIT, 195 : original , fixed , running . 3 Nov 2004, 15:47 SN/ M5.0 , AR 696, N11E40 . ... 4 Nov 2004, 09:05 SF/ C6.3 , AR 696, N08E28 . ... LASCO: C2_C3_rd , EIT, 195 : original , fixed , running . ...

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