... Stellar Evolution is driven entirely by the never ending battle between Pressure and Gravity . As imbalances are reached, the star is driven to find a new Energy source. ... Pressure and gravitational forces are equal, the star is stable and its core is sufficiently hot to fuse Hydrogen into Helium More about main sequence stars . ... The luminosity generated by the core fusion of Helium into Carbon is far greater than the shell luminosity associated with the fusion of Hydrogen into Helium. ...

... The Galway Astronomy Club are pleased to announce details of their upcoming Astronomy Festival to take place at the 4* Westwood House Hotel from Friday February 12th to Saturday February 13th 2010. The event will be styled in the same manner as this year (which worked very well) and will have ten different speakers. ... Dr Aaron Golden NUI Galway: тАЬHas Earth Contaminated the Solar System? тАУ the Case for Life on MarsтАЭ . ... International Year of Astronomy, Ireland National Node . ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. February 23, 1999 . Construction of International Space Station Begins . Credit: STS-88 Shuttle Crew , NASA . Explanation: Move over Mir , here comes the International Space Station . ... The International Space Station 's low 250-mile Earth orbit causes it to experience one complete day/night cycle in about 90 minutes. ...

The project of the informational system creation on the problem of evolution of radio galaxies, as a part of the "Big Trio" project aimed on studing of distant radio galaxies, is designed. This system allows a user to operate with simulated curves of spectral energy distributions (SED) to estimate ages and redshifts by photometry data. Authors use SEDs of several models for different types of galaxies. ... The HTTP and e-mail access is organized to this system. ...

... The HI - Star Formation Connection . ... Coffee . ... Dark Galaxies and Dark Matter . ... HI in Normal Galaxies . HI and Galaxy Evolution over Cosmic Time . ... How Galaxies Accrete Gas . ... The Billion Galaxy Survey . ... Searches for Dark Galaxies . ... Evidence for Dark Matter in Galaxies . HI in Galaxies: Overview . ... Open Questions in Normal Galaxies . ... Starburst galaxies and BCDs . ... HI Rich Galaxies . ... Open Questions in HI and Galaxy Evolution . HI and Galaxy Evolution . ...

... Galaxy Evolution home . ... Observing proposals are invited for the EVN, a VLBI network of radio telescopes in Europe and Asia operated by an international Consortium of institutes. ... The EVN User Guide is available at http://www.jive.nl/jive/evn/evn.html, the EVN Status table (http://www.oso.chalmers.se/~vlbi/EVN/EVNstatus) gives current antenna . ... observed by the EVN and Global VLBI. EVN Observing Sessions in 2002 . ... 512 Mbps recording available at EVN antennas from session 2/2002 . ...

... John Clarke, Boston University . Comprehensive Auroral Imaging of Jupiter and Saturn during the International Heliophysical Year . Abstract . ... A Census of LIRGs in Clusters of Galaxies in the First Half of the Universe from the IRAC Shallow Survey . ... High Contrast Imaging of Dusty White Dwarfs . ... However, follow-up observations showed that the excess peaked at longer wavelengths than would be expected for a white dwarf; rather, G 29-38 is surrounded by a dusty disk. ... Past weeks: . ...

... Telescopes . ... The International Conference "Dark Ages and White Nights (Spectroscopy of the CMB)" (June 20-24, 2016) . ... The International Conference "Stars: from collapse to collapse" (October 3-7, 2016) . The traditional annual competition conference of scientific and scientific-engineering papers of the Observatory staff members . ... A session of the Dissertation Council (October 16, 2015) . ... International scientific conference "Large Optical Telescopes" (October, 10-13, 2011) . ...

... Korolev, Moscow area. On February 28, 2006 RSC Energia hosted the training sessions of Brazilian citizen Marcos Pontes under the training program for the participant in space flight to the International space station (ISS) within 10th Visiting Crew. ... President of RSC Energia after S.P. Korolev, General Designer N.N. Sevastiyanov congratulated M. Pontes on his birthday during the joint training sessions presenting wrist-watch and memorable gold medal of the Corporation. ...

... Australia Telescope Steering Committee . ... Parkes radio telescope . ... Late Stages of Stellar Evolution . Welcome to the home page of the Late Stages of Stellar Evolution" We are a research group which operates within the Astrophysics Group of the Australia Telescope National Facility. ... To investigate the late stages of stellar evolution and in particular the role of stellar mass-loss in the evolution of asymptotic giant branch stars, proto-planetary nebulae and extremely massive stars. ...