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Latest Galactic astronomy Stories

How Did Single Stars Lose Their Companions
2011-09-16 07:12:23

  Not all stars are loners. In our home galaxy, the Milky Way, about half of all stars have a companion and travel through space in a binary system. But explaining why some stars are in double or even triple systems while others are single has been something of a mystery. Now a team of astronomers from Bonn University and the Max-Planck-Institute for Radio astronomy (also in Bonn) think they have the answer — different stellar birth environments decide whether a star holds on to...

Milky Way's Spiral Arms Created By Collision With Another Galaxy
2011-09-15 09:56:33

  The Milky Way's trademark features, its iconic spiral arms, were likely formed when the galaxy collided with the Sagittarius Dwarf galaxy, researchers announced on Thursday. In their study, University of Pittsburgh postdoctoral research associate Christopher W. Purcell and colleagues were the first to use supercomputers to re-create repeated collisions between the two galaxies, which scientists previously believed had little impact on the Milky Way. According to a University...

Spiral galaxy top view
2011-08-29 11:32:12

  Researchers at the University of California, Santa Cruz have used a supercomputer to create a spiral galaxy that matches our own Milky Way galaxy. The computer simulation is part of a physics project involving galaxy formation and evolution. "Previous efforts to form a massive disk galaxy like the Milky Way had failed, because the simulated galaxies ended up with huge central bulges compared to the size of the disk," Javiera Guedes, a graduate student in astronomy and...

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2011-08-26 10:18:44

The Milky Way will have the fuel to continue forming stars, thanks to massive clouds of ionized gas raining down from its halo and intergalactic space. This is the conclusion of a new study by Nicolas Lehner and Christopher Howk, faculty in the Department of Physics at the University of Notre Dame. Their report, "A Reservoir of Ionized Gas in the Galactic Halo to Sustain Star Formation in the Milky Way," is published in Science August 26. Using the Cosmic Origins Spectrograph, one of the...

spacepress-082511-003a
2011-08-25 10:27:56

  For almost 20 years astrophysicists have been trying to recreate the formation of spiral galaxies such as our Milky Way realistically. Now astrophysicists from the University of Zurich present the world's first realistic simulation of the formation of our home galaxy together with astronomers from the University of California at Santa Cruz. The new results were partly calculated on the computer of the Swiss National Supercomputing Center (CSCS) and show, for instance, that there has...

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2011-07-20 08:50:00

ESO's Very Large Telescope captured this striking view of the nebula around the star cluster NGC 1929 within the Large Magellanic Cloud, a satellite galaxy of our own Milky Way. A colossal example of what astronomers call a superbubble dominates this stellar nursery. It is being carved by the winds from bright young stars and the shockwaves from supernova explosions. The Large Magellanic Cloud is a small neighboring galaxy to the Milky Way. It contains many regions where clouds of gas and...

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2011-07-08 07:06:09

ESA's Herschel Space Observatory has detected cosmic dust from a supernova, adding to the theory that these cosmic fireworks are responsible for its creation. The astronomers who used Herschel to make the discovery said origin of the dust is important because it plays a crucial role in the formation of stars, particularly billions of years ago when star formation was at its peak.  "Interestingly, this brand new clue does not come from observations of very distant galaxies, but from one...

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2011-06-16 10:20:00

On Thursday, NASA released a colorful image of the RCW 120 nebula taken bb the Spitzer space telescope. This nebula is 4,300 light-years away in the constellation Scorpius just above the plane of the galaxy. It emits a broad range of colors in the infrared region and has wavelengths beyond what humans can see. The ring-shaped cloud of gas and dust is believed to have originated from the heat of giant "O" type stars at the ring's center. These are the largest and brightest stars scientists...

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2011-06-01 10:00:00

Astronomers have discovered another galaxy about 30 million light years away that looks like a giant Milky Way "clone". The galaxy would be identical to the Milky Way if its diameter was not twice that of the Milky Way. "This view could almost be a picture postcard of our own Milky Way, taken and sent by an extragalactic friend, as this galaxy closely resembles our own," the European Southern Observatory (ESO) said in a statement. The galaxy lies about 30 million light years away, in the...

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2011-05-25 09:41:46

An extraordinarily bright isolated star has been found in a nearby galaxy "” the star is three million times brighter than the Sun. All previous similar "superstars" were found in star clusters, but this brilliant beacon shines in solitary splendor. The origin of this star is mysterious: did it form in isolation or was it ejected from a cluster? Either option challenges astronomers' understanding of star formation. An international team of astronomers [1] has used ESO's Very Large...


Latest Galactic astronomy Reference Libraries

3_b44b7fd989f2076cfeda5fc743f39ab02
2004-10-19 04:45:40

Milky Way Galaxy -- The Milky Way (a translation of the Latin Via Lactea, in turn derived from the Greek Galaxia (gala, galactos means "milk")) is a hazy band of white light across the night sky formed by billions of stars in the disc of our galaxy. The Milky Way appears brightest in the direction of Sagittarius, where the galactic centre lies. Relative to the celestial equator, the Milky Way passes as far north as the constellation of Cassiopeia and as far south as the constellation of...

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Word of the Day
snash
  • To talk saucily.
  • Insolent, opprobrious language; impertinent abuse.
This word is Scots in origin and probably imitative.