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Lives And Deaths Of Sibling Stars

Lives And Deaths Of Sibling Stars

Richard Hook, European Southern Observatory (ESO) In this striking new image from ESO’s La Silla Observatory in Chile young stars huddle together against a backdrop of clouds of glowing gas and lanes of dust. The star cluster, known as NGC...

Latest Globular cluster Stories

Umbrella Galaxy
2014-07-03 04:44:09

April Flowers for redOrbit.com - Your Universe Online Astronomers are hoping to gain a new understanding of how galaxies grow from watching a distant “twin” of the Milky Way as it is swallowing another galaxy. Dr. Caroline Foster of the Australian Astronomical Observatory (AAO) led the team that has been studying NCG 4651, called the Umbrella galaxy for the “parasol” of stars that are all that remain of the galaxy being consumed. Umbrella can be found approximately 62 million...

elliptical galaxy M87
2014-04-30 12:25:17

Harvard-Smithsonian Center for Astrophysics The galaxy known as M87 has a fastball that would be the envy of any baseball pitcher. It has thrown an entire star cluster toward us at more than two million miles per hour. The newly discovered cluster, which astronomers named HVGC-1, is now on a fast journey to nowhere. Its fate: to drift through the void between the galaxies for all time. "Astronomers have found runaway stars before, but this is the first time we've found a runaway star...

Distant Galaxy Clusters Located By ESA Spacecraft
2014-02-12 13:04:23

Brett Smith for redOrbit.com - Your Universe Online Using a novel way of combining data from the two European Space Agency (ESA) satellites Planck and Herschel, an international team of scientists has been able to locate more distant galaxy clusters than previously possible. According to the team’s report in the Monthly Notices of the Royal Astronomical Society, they were able to use their new technique to discover four previously unknown galaxy clusters containing thousands of...

ESO Researchers Discover Three New Planets In Messier 67
2014-01-15 08:46:20

[ Watch the Video: Messier 67 A Perfect Lab For Studying Planet Formation ] Gerard LeBlond for redorbit.com - Your Universe Online There have been more than one thousand planets confirmed outside our Solar System, but only a few are within star clusters. Using the European Southern Observatory’s (ESO) HARPS instrument, researchers have found three new planets in the star cluster Messier 67. Of these three newly discovered planets, two have been found orbiting stars similar to our sun....

massive Star forming cluster discovered
2013-12-16 15:57:27

Lee Rannals for redOrbit.com - Your Universe Online Astronomers using the Smithsonian's Submillimeter Array (SMA) have discovered a giant star-forming region. Known as W49A, the region is located 36,000 light-years away from Earth on the opposite side of the Milky Way. Astronomers say the star-forming region shines 100 times brighter than the Orion nebula. In order to view W49A, astronomers had to aim SMA through dusty fog, after which the telescope helped reveal an active site of star...

Hubble Sees Old And Mysterious Cluster
2013-11-14 12:17:16

[ Watch The Video: A Rare and Exotic Intermediate-Mass Black Hole ] NASA/ESA Hubble Space Telescope The NASA/ESA Hubble Space Telescope has captured the best ever image of the globular cluster Messier 15, a gathering of very old stars that orbits the center of the Milky Way. This glittering cluster contains over 100 000 stars, and could also hide a rare type of black hole at its center. This multi-colored firework display is a cluster of stars known as Messier 15, located some...

New Black Hole In GLobular Cluster
2013-11-07 07:51:37

Lee Rannals for redOrbit.com - Your Universe Online Astronomers have discovered a new black hole candidate sitting inside a globular cluster known as M62. The latest discovery, reported in the Astrophysical Journal, adds weight to the argument that black holes are a common occurrence in these star clusters. Astronomers discovered two black holes in a globular cluster, known as M22, last year . "This implies that the discovery of the other black hole, in the globular cluster called...

2013-11-06 16:03:29

Lee Rannals for redOrbit.com - Your Universe Online “Astronomers have discover a new black hole candidate sitting inside a globular cluster known as M62. The latest discovery, reported in the Astrophysical Journal, adds weight to the argument that black holes are a common occurrence in these star clusters. Astronomers discovered two black holes in a globular cluster last year known as M22. "This implies that the discovery of the other black hole, in the globular cluster called M22,...

Petal-like Shells And Strange Star Clusters
2013-10-10 11:08:51

[ Watch The Video: Zooming in on PGC 6240 ] [ Watch The Video: Panning across PGC 6240 ] NASA/ESA Hubble Space Telescope PGC 6240 is an elliptical galaxy that resembles a pale rose in the sky, with hazy shells of stars encircling a very bright center. Some of these shells are packed close to the center of the galaxy, while others are flung further out into space. Several wisps of material have been thrown so far that they appear to be almost detached from the galaxy altogether....

Dark Matter Evidence From Galaxy Cluster Abell 1689
2013-09-13 03:56:51

[ Watch the Video: Pan Across Galaxy Cluster Abell 1689 ] redOrbit Staff & Wire Reports - Your Universe Online Astronomers studying a new image of the massive galaxy cluster Abell 1689 have revealed the largest known population of globular clusters to date, NASA reported on Thursday. In a study published earlier this week in the online edition of The Astrophysical Journal, Karla Alamo-Martinez of the Center for Radio Astronomy and Astrophysics of the National Autonomous...


Latest Globular cluster Reference Libraries

6_ee73912f0568b7aab1fb32a3d250b7b82
2004-10-19 04:45:42

Star Cluster -- Star clusters are physically bound systems of stars. In order of low compactness to high compactness (and in some sense also age) they range from stellar associations to open clusters to globular clusters. Star clusters are held together by the gravitation of their members. Due to both external (encounters with massive objects, influence of the host galaxy) and internal (encounters with other cluster members, stellar evolution) influences, clusters slowly evaporate. Their...

6_46f1290db7aabf07d0480393fea260ed2
2004-10-19 04:45:41

Globular Cluster -- A globular cluster is a cluster of stars that is spherical in shape and extremely dense towards its core. Globular clusters are usually composed of hundreds of thousands of old stars, similar to the bulge of a spiral galaxy but confined to a volume of only a few cubic parsecs. Some globular clusters (like Omega Centauri in our Milky Way, and G1 in M31) are truly massive clusters, with several million times the mass of our Sun. Such globular clusters may be the...

6_e40db84a4338b0529465bda1f7ad78d62
2004-10-19 04:45:41

Galaxy -- Stars are almost always found in collections called galaxies, together with gas, dust, and large amounts of dark matter detected by its gravitational effects. These are all held together by gravitational attraction and orbit a common centre. There is some evidence that black holes may exist at the centre of some or most galaxies. Galaxies come in three main types: ellipticals, spirals, and irregulars. A slightly more extensive description of galaxy types is given by the Hubble...

3_8c23adba28ac23ddb6954b79674339f42
2004-10-19 04:45:40

Virgo A Galaxy -- Discovered 1781 by Charles Messier. The giant elliptical galaxy M87, also called Virgo A, is one of the most remarkable objects in the sky. It is perhaps the dominant galaxy in the closest big cluster to us, the famous Virgo Cluster of galaxies (sometimes also called "Coma-Virgo cluster" which is more acurate, as it extends into constellation Coma), and lies at the distance of this cluster (about 60 million light-years). M87 lies well in the heart of the Virgo cluster...

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
siliqua
  • A Roman unit of weight, 1⁄1728 of a pound.
  • A weight of four grains used in weighing gold and precious stones; a carat.
  • In anatomy, a formation suggesting a husk or pod.
  • The lowest unit in the Roman coinage, the twenty-fourth part of a solidus.
  • A coin of base silver of the Gothic and Lombard kings of Italy.
'Siliqua' comes from a Latin word meaning 'a pod.'
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