... Hubble's Constant And The Expanding Universe (II) . ... Our Universe is expanding. ... Two groups of astronomers are searching vigorously for answers to these fundamental questions using the Hubble Space Telescope (HST). ... These five pairs of Hubble Space Telescope images track some of Saturn's moons as they orbit the ringed planet. ... These Hubble Space Telescope (HST) images reveal glimpses of the dynamic atmosphere of Neptune, the Solar System's most distant gas giant planet. ...

... Galaxy Cluster in the Early Universe . ... Explanation: Long before medieval alchemists dreamed of transmuting base metals to gold , stellar furnaces in this massive cluster of galaxies - cataloged as RDCS 1252.9-2927 - had transformed light elements into heavy ones . ... The cluster elemental abundances are consistent with the idea that most heavy elements were synthesized early on by massive stars, but current theories suggest that such a massive cluster should be rare in the early Universe . ...

... Updated 2008 December 22nd . ... Updated 2008 December 18th . ... Updated 2008 December 17th . ... Updated 2008 December 16th . ... Updated 2008 December 15th . ... Updated 2008 December 10th . ... Updated 2008 December 2nd . ... Some Videos on our Web Sites . ... Cool October . ... Updated 2008 October 31st . ... Updated 2008 October 15th . ... Updated 2008 October 10th . ... Updated 2008 October 9th . ... Updated 2008 October 8th . ... Updated 2008 October 7th . ... Updated 2008 October 2nd . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Armagh Planetarium . ... Space Flight . Human Exploration . Robot Exploration . ... Originally Discovery had been set to launch on 1 November, but this was delayed when fatigue cracks were found in the structure of its External Tank. ... A little bit of trivia is that Discovery has actually made the only shuttle-era Christmas time flight to date, this was STS-103 ,€а a mission to repair the Hubble Space Telescope in 1999. ...

Lectures . ... Home Lectures Lecture Series 2010-2011 Lecture Series 2010-2011 ? Top Ten Discoveries of the Phoenix Misson to Mars? by Suzanne Young . ... Lecture Series 2010-2011 . ... 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 . ... Amateur Astronomers Medal . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

... Tonight's Sky . ... The Magazine . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... What is the heaviest element that astronomers can detect? ... The heaviest element that astronomers have found in space is the same as the heaviest element naturally occurring on Earth: uranium. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email...

... Measurement of the MASS detectors parameters with mass program January 24, 2015 [112707] . MASS/DIMM electronics. ... Turbina-core(D): Dimm User Guide. ... N.Shatsky, V.Kornilov, The revision of the MASS/DIMM star catalogue. ... О.Возякова, В.Корнилов, Н.Шатский, Новое программное обеспечение прибора MASS/DIMM. ... V.Kornilov, N.Shatsky, S.Potanin, O.Voziakova, B.Safonov Preliminary results of astroclimate parameters measurements at the Sternberg 2.5m telescope installation site. ...

... These Frontier Fields will combine the power of HST with the natural gravitational telescopes of high-magnification clusters of galaxies. ... We are soliciting gravitational lensing maps for the last four Hubble Frontier Fields clusters (MACSJ0717.5+3745, MACSJ1149.5+2223, AbellS1063, and Abell 370) based upon the exceptionally deep HST FF imaging and other new ancillary data. ... For the full set of proposal instructions and requirements, see the FY16 Frontier Fields Lensing Map Call for Proposals....

An Ancient Universe: How Astronomers Know the Vast Scale of Cosmic Time . ... d) The Age of the Chemical Elements . ... Some isotopes (forms of the element with different numbers of neutrons in the nucleus) of these elements are radioactive; they change into other isotopes at a rate that can be measured accurately in the laboratory. ... The Ancient Universe - The Age of the Expanding Universe - The Age of the Oldest Stars - The Age of Light From Distant Galaxies - The Age of the Chemical Elements | ...

... November 30, 1999 . Henize 70: A SuperBubble In The LMC . ... Explanation: Massive stars -- upwards of tens of times the mass of the Sun - profoundly affect their galactic environment. ... It is actually a luminous "superbubble" of interstellar gas about 300 light-years in diameter, blown by winds from hot, massive stars and supernova explosions , its interior filled with tenuous hot expanding gas. ... About APOD > . ...

... Spanish translation of "Stargazers" by J. M. Mendez and Horacio Chavez . ... Astronomy of the Earth's motion in space: . ... The Path of the Sun, the Ecliptic . ... 4b. Optional: Libration of the Moon . ... Kepler's 3 Laws of Planetary Motion ," a one-hour overview lecture to teachers presented 23 March 2005. Guide to the sections on Kepler's Laws which follow below. ... 11a. Ellipses and Kepler's First Law . ... Kepler's Second Law . 12a. More on Kepler's Second Law . ... Kepler's Third Law . ...

... STEPS OF ISS ASSEMBLY . ... STEPS OF THE ISS ASSEMBLY All flights 09/30/2009 - up to now 11/15/2008 - 09/30/2009 10/23/2007 - 10/24/2008 12/10/2006 - 10/21/2007 02/28/2005 - 10/26/2006 02/28/2005 - 09/08/2005 04/19/2004 - 02/27/2005 04/26/2003 - 05/24/2004 09/25/2002 - 02/04/2003 04/25/2002 - 09/24/2002 11/26/2001 - 04/15/2002 06/12/2001 - 10/31/2001 02/26/2001 - 05/23/2001 10/12/2000 - 02/20/2001 08/06/2000 - 09/20/2000 07/12/2000 - 07/26/2000 11/20/1998 - 05/29/2000 . ... Station element . ...

Clues to the formation and evolution of our Galaxy, the Milky Way, are hidden in the chemical abundances and kinematics of its stars. ... The discovery of the ongoing accretion of the Sagittarius dwarf galaxy confirmed that mergers with satellite dwarf galaxies have contributed to the formation of the Galactic halo. ... In particular, I investigated the accretion of dwarf galaxies by the Galaxy and the role of asymptotic giant branch (AGB) stars in the chemical evolution of these systems. ...

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Astronomers have found a radio pulsar with a companion at least 11 times the mass of the Sun - the most massive pulsar companion known. The identity of the companion is uncertain: it may be a massive late-type (red) star, a massive but compact blue star, or possibly a black hole. ... The probability of this late-type star being there by chance, and not being the pulsar companion, is only about 1.3%," says team member Dr. Fernando Camilo of Columbia University. ... So what can the companion be? ...

... Right: cold gas traced by [CII] emission (red) accreting onto a primeval galaxy (green) at z=7.1 ( Maiolino et al. 2015 ) (image credit: ALMA Press Release ) . ... 2010 , Cicone, Maiolino et al. ... 2012 , Cicone, Maiolino et al. ... Right: observed distribution of the average stellar metallicities of passive and star forming galaxies in the local universe, supporting starvation/strangulation as primary quenching mechanism in low/intermediate mass galaxies ( Peng, Maiolino, Cochrane 2015 ). ...

Blackholes Discussion Forum . Forums: . ... black hole pump? - sleepvark - September 3, 2014 - 21:13 UTC . ... WHAT IS Fe1 neagative?This is dark matter..... - theoracle - January 27, 2009 - 19:11 UTC . ... hbar=e^2/e0c - garrydenke - June 7, 2005 - 14:05 UTC . ... black hole theory - astronomy124 - February 24, 2005 - 04:47 UTC . ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... This is one of the results from the Arecibo Methanol Maser Galactic Plane Survey that is being presented by graduate student Jagadheep D. Pandian of Cornell University, Ithaca, New York, Dr. Paul F. Goldsmith of Jet Propulsion Laboratory, Pasadena, California and Dr. Avinash A. Deshpande of Raman Research Institute, Bangalore, India to the American Astronomical Society meeting in Washington DC. ... Methanol masers at 6.7 GHz are beacons of massive star formation in our Galaxy. ...

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