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Latest I Zwicky 18 Stories

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2011-06-15 09:30:00

A unique example of some of the lowest surface brightness galaxies in the universe have been found by an international team of astronomers lead by the Niels Bohr Institute. The galaxy has lower amounts of heavier elements than other known galaxies of this type. The discovery means that small low surface brightness galaxies may have more in common with the first galaxies formed shortly after the Big Bang than previously thought. The results have been published in Monthly Notices of the Royal...

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2011-04-24 16:35:00

Astronomers using NASA's Galaxy Evolution Explorer may be closer to knowing why some of the most massive stellar explosions ever observed occur in the tiniest of galaxies."It's like finding a sumo wrestler in a little 'Smart Car,'" said Don Neill, a member of NASA's Galaxy Evolution Explorer team at the California Institute of Technology in Pasadena, and lead author of a new study published in the Astrophysical Journal."The most powerful explosions of massive stars are happening in extremely...

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2010-10-13 14:09:46

New observations from ESO's Very Large Telescope have, for the first time, provided direct evidence that young galaxies can grow by sucking in the cool gas around them and using it as fuel for the formation of many new stars. In the first few billion years after the Big Bang the mass of a typical galaxy increased dramatically and understanding why this happened is one of the hottest problems in modern astrophysics. The results appear in the October 14 issue of the journal Nature. The first...

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2009-11-11 07:50:00

The Universe's infant galaxies enjoyed rapid growth spurts forming stars like our sun at a rate of up to 50 stars a year, according to scientists at Durham University. The findings show that "stellar nurseries" within the first galaxies gave birth to stars at a much more rapid rate than previously expected, the researchers from Durham's Institute for Computational Cosmology revealed. Their work appears in a paper in the journal Monthly Notices of the Royal Astronomical Society. The research...

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2009-04-28 14:45:00

NASA's Galaxy Evolution Explorer Mission marks its sixth anniversary studying galaxies beyond our Milky Way through its sensitive ultraviolet telescope, the only such far-ultraviolet detector in space. The mission studies the shape, brightness, size and distance of galaxies across 10 billion years of cosmic history, giving scientists a wealth of data to help us better understand the origins of the universe. One such object is pictured here, the galaxy NGC598, more commonly known as M33. In...

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2008-04-28 15:10:00

Since its launch five years ago, the Galaxy Evolution Explorer has photographed hundreds of millions of galaxies in ultraviolet light. M106 is one of those galaxies, and from 22 light years away, it strikes a pose in blue and gold for this new commemorative portrait.The galaxy's extended arms are the blue filaments that curve around its edge, creating its outer disk. Tints of blue in M106's arms reveal hot, young massive stars. Traces of gold toward the center show an older stellar population...

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2007-10-16 10:30:00

NASA's Hubble Space Telescope has found a galaxy that is the equivalent of the painting of Dorian Gray, a portrait in an Oscar Wilde novel that appears mysteriously to age. Like the fictional painting, the galaxy I Zwicky 18 appears to look older the more astronomers study it. What astronomers once thought was a toddler galaxy by galactic standards may now be considered an adult. The galaxy's youthful appearance was identified some 40 years ago through observations at the Palomar Observatory....

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2007-09-06 11:59:59

NASA's Hubble and Spitzer Space Telescopes have joined forces to discover nine of the smallest, faintest, most compact galaxies ever observed in the distant universe. Blazing with the brilliance of millions of stars, each of the newly discovered galaxies is a hundred to a thousand times smaller than our Milky Way Galaxy. "These are among the lowest mass galaxies ever directly observed in the early universe" says Nor Pirzkal of the Space Telescope Science Institute in Baltimore, Md. The...

2005-09-27 12:51:54

By Deborah Zabarenko WASHINGTON (Reuters) - Astronomers using two of NASA's most powerful telescopes said on Tuesday they have detected a "big baby" galaxy, vastly heavy for its young age and its location in the early universe. The discovery was surprising, since astronomers have long theorized that galaxies form when stars gradually cluster together, with small galaxies preceding bigger galaxies. But the stars in this cosmic infant -- less than 1 billion years old -- have eight...

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2004-12-01 07:00:00

Hubble -- Scientists using NASA's Hubble Space Telescope have measured the age of what may be the youngest galaxy ever seen in the universe. By cosmological standards it is a mere toddler seemingly out of place among the grown-up galaxies around it. Called I Zwicky 18, it may be as young as 500 million years old (so recent an epoch that complex life had already begun to appear on Earth). Our Milky Way galaxy by contrast is over 20 times older, or about 12 billion years old, the typical age...


Word of the Day
baudekin
  • A rich embroidered or brocaded silk fabric woven originally with a warp of gold thread.
'Baudekin' seems to be an alternative form of 'baldachin,' from the Italian 'Baldacco,' Baghdad, the city where the material was made.
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