... The T Tauri Star Forming System . 4.06.2001 . ... A nearly unprecedented symphony of international observations began abruptly on 2000 March 1 when Earth-orbiting RXTE, Sun-orbiting Ulysses, and asteroid-orbiting NEAR all detected a 10-second burst of high-frequency gamma radiation. ... Arcing toward southern skies in late March, this faint comet LINEAR - the one officially designated C/2001 A2 (LINEAR) - brightened unexpectedly. ... Comet Hale-Bopp Over Val Parola Pass . ... March . ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2002 November 6 . The Winter Hexagon . Credit Copyright : Jerry Lodriguss . Explanation: Some of the brightest stars form a large and easily found pattern in the winter sky of Earth 's northern hemisphere . Dubbed the Winter Hexagon , the stars involved can usually be identified even in the bright night skies of a big city . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Comets and Asteroids . ... Space Flight . ... November . ... By admin September 26, 2012 Posted in: Comets and Asteroids . Comet ISON is revealed.( ... Comet ISON.'s orbit and position on 25 September 2012.( ... The comet€а will reach its closest point to the Sun, perihelion in late November 2013.Then it is expected to whizz around the Sun a mere 1.1 million km above its surface making Comet ISON one of that class of comets called€а Sungrazers. ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2000 November 8 . October Skylights . ... Explanation: With brilliant Venus above the western horizon at sunset and Jupiter and Saturn high in the east by early evening, November's night sky is filled with bright planets. October's sky featured bright planets as well and, triggered by the active Sun, some lovely auroral displays . ...

... Subject: IAA Lecture, Events at WWT and Dungannon, RIA lecture, Galway A.F., ISS . ... Supernovae come in various forms, with different causes, but in general terms theyѓЉrepresent eitherѓЉthe explosive death of a giant star, or a very violent episode in the life of a binary star pair. Visually, they are the greatest explosions we see in the universe, with the exploding star sometimes becoming as bright as the combined light of all the other hundreds of millions of stars in its parent galaxy! ...

In star-forming galaxies, dust plays a significant role in shaping the ultraviolet (UV) through infrared (IR) spectrum. ... Using three samples of galaxies observed with the Spitzer Space Telescope and our dusty radiative transfer model, we find that young stellar populations (on the order of 100 million years old) dominate the dust heating in star-forming galaxies, and old stellar populations (13 billion years old) generally contribute less than 20% of the far-IR luminosity. ...

... For a long time we've known that planets form and live around stars. ... When a star is born, any leftover gas and dust forms a disc around it, similar to Saturn's rings. Within this disc, small dust grains made of rock sometimes form. ... Now, for the first time ever astronomers have spotted solid grains in the gassy disc around a 'brown dwarf' an object that is neither a planet nor a star. ... Astronomers didn't expect to find these solid grains around brown dwarfs for a number of reasons. ...

... STScI-PRC95-45a CRUCIBLE OF CREATION: PANORA