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2014-03-20 04:20:02

The DIY finger-prick technique opens door for extensive stem cell bankingSingapore, 3/20 - Above: Schematic on finger-prick blood isolation and treatment for cellular reprogramming (Image from Loh Yuin Han, Jonathan, IMCB); Down: Marker staining of hiPSCs (Image from Loh Yuin Han, Jonathan, IMCB)Singapore, Mar 20, 2014 - (ACN Newswire) - Scientists at A*STAR's Institute of Molecular and Cell Biology (IMCB) have developed a method to generate human induced pluripotent stem cells (hiPSCs) from...

Reconstructing The Death Of Supernovae In 3D Offers New Insights
2014-03-18 13:29:42

Lee Rannals for redOrbit.com - Your Universe Online An astrophysicist has created a new three-dimensional model that provides new insight into the death throes of supernovae. The model, created by W. David Arnett, Regents Professor of Astrophysics at the University of Arizona, is the first to represent the start of a supernova collapse in 3D. It shows how the turbulent mixing of elements inside the dying stars causes them to expand, contract and spit out matter before exploding....

Astronomers Discover Hypergiant Star 1300 Times The Size Of Our Sun
2014-03-12 12:34:41

[ Watch the Video: Artist's Impression of Yellow Hypergiant Star HR 5171 ] Lee Rannals for redOrbit.com - Your Universe Online Astronomers using the European Southern Observatory’s (ESO) Very Large Telescope have discovered the largest yellow star so far. The team discovered yellow hypergiant star HR 5171 in a double star system about 12,000 light-years away from Earth. The star is so huge that it can just about be seen with the naked eye, despite its distance from Earth. “The...

Protostars In Orion Nebula Doomed By Larger Stars
2014-03-11 06:11:18

Lee Rannals for redOrbit.com - Your Universe Online Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) found that some protostars in the Orion Nebula are doomed from the beginning. The Orion Nebula has hundreds of young stars, or protostars, and even some “proplyds,” which are stars that are even younger than protostars. Astronomers have discovered that some of these young stars will have their planet-forming dust and gas blasted away from another star when...

Loops of Gas and Dust Rise from Planetary Disks
2014-03-07 04:27:02

Brett Smith for redOrbit.com - Your Universe Online Almost a decade ago, scientists using NASA's Spitzer Space Telescope found that planet-forming disks around young stars are heated by starlight and glow with infrared light. However, these scientists found that additional infrared light was originating from an unknown source. Now, new models developed by NASA have revealed why these stars emit more infrared light than expected – gas and dust magnetically suspended above the disks...

Snake Nebula
2014-02-26 12:49:25

[ Watch the Video: Birth Of A Star A Family Affair ] Lee Rannals for redOrbit.com - Your Universe Online Astronomers using the Smithsonian's Submillimeter Array (SMA) telescope have imaged the most detailed look yet of stellar nurseries within the Snake nebula. The Snake nebula is about 11,700 light-years away from Earth towards the direction of the constellation Ophiuchus. The astronomers chose this nebula because it shows the potential to form many massive stars. "To learn how...

2014-02-25 12:24:02

Mobile Access to Istation Available for the 2014 School Year DALLAS, Feb. 25, 2014 /PRNewswire/ -- Mobile access to Istation's computer-adaptive reading instruction is coming to the iPad just in time for the 2014 school year, perfect for transformational educators who embrace mobile learning strategies and innovative schools that adopt 1-to-1 technology, "bring your own device" (BYOD) approaches and mobile computer labs. (Logo: http://photos.prnewswire.com/prnh/20120709/DA36825LOGO)...

Giant Gas Cloud Spotted By Telescope On Antarctica's Ridge A
2014-02-21 08:19:35

Deborah Smith, University of New South Wales Using a telescope installed at the driest place on earth - Ridge A in Antarctica – a UNSW-led team of researchers has identified a giant gas cloud which appears to be in an early stage of formation. Giant clouds of molecular gas – the most massive objects in our galaxy – are the birthplaces of stars. "This newly discovered gas cloud is shaped like a very long filament, about 200 light years in extent and ten light years across, with...

2014-02-20 20:23:47

Marne Mayer Joins Muscle & Fitness as Art Director as the Brand Invests to Broaden Its Editorial Content to Cater to Today's Male Fitness Enthusiast NEW YORK, Feb. 20, 2014 /PRNewswire/ -- American Media, Inc. (AMI) announced today that Consulting Editorial Director David Zinczenko will oversee the brand repositioning and redesign of Muscle & Fitness. The announcement builds on the extraordinary success that the AMI title Men's Fitness has experienced since Zinczenko and his...

Two Sources Of Helium Produced By Ancient Yellowstone Activity
2014-02-20 07:33:51

[ Watch the Video: Yellowstone Releasing Ancient Helium ] Lawrence LeBlond for redOrbit.com - Your Universe Online As one might expect, Yellowstone National Park’s hot springs, geysers and other hydrothermal vents release gases stored deep below the Earth, including carbon dioxide and methane. Another gas has also been discovered to be squeaking out of Yellowstone’s vents, and while it is a common gas released from volcanic rocks, in this region, most of it comes from a much...


Latest Star Reference Libraries

Stellar Astrophysics
2014-01-12 00:00:00

The prominent feature that allows for the existence of life on Earth is the Sun. Radiation from our closest star provides heat and energy to our planet, driving biological processes and providing the necessary conditions for liquid water to naturally exist. But our Sun is only but one star in this vast Universe. And as it turns out, most stars are quite different than the one that illuminates our day. For this reason, scientists have, for hundreds of years, attempted to study the other...

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2004-10-19 04:45:43

UV Astronomy -- UV astronomy is the branch of astronomy and astrophysics which deals with objects visible in ultraviolet (UV) radiation. UV radiation ranges approximatively from 10nm (extreme UV) to 380nm (near UV). Ultraviolet line spectrum measurements are used to discern the chemical composition, densities, and temperatures of interstellar medium, and the temperature and composition of hot young stars. UV observations can also provide essential information about the evolution of...

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2004-10-19 04:45:43

Hertzsprung-Russell Diagram -- In stellar astronomy, the Hertzsprung-Russell diagram (H-R diagram) shows the relation between the absolute magnitude and the spectral types of stars. It was invented around 1910 by Ejnar Hertzsprung and Henry Norris Russell. There are two equivalent forms. One is the observer's form which plots the color of the star on one axis and the absolute magnitude on the other axis. The theoretician's form plots the temperature of the star on one axis and the...

6_1446abbc556d86191d7944d6c5cf68052
2004-10-19 04:45:43

X-ray Burster -- X-ray bursters are a class of binary stars which are luminous in X-rays. They contain a neutron star and a low-mass companion star. The companion fills its Roche lobe and therefore the neutron star is accreting matter from it. The inflowing gas forms an accretion disk around the neutron star. Sometimes X-ray bursters show a sudden increase in their X-ray luminosity, called X-ray burst. All properties of the X-ray bursts can be explained assuming that they result from...

6_f1577ee462b741c03ef6a7d23d2cd6905
2004-10-19 04:45:43

Variable Star -- Most stars are of nearly constant luminosity. Our own Sun is a good example which goes through practically no measurable variation in brightness. There are, however, stars which do vary in brightness, called variable stars. They fall into two main groups: Intrinsic variables These are stars which have intrinsic variations in brightness, that is the star itself gets brighter and dimmer. There are many types of intrinsic variables, the main types being: -- Mira...

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Word of the Day
pungle
  • To take pains; labor assiduously with little progress.
This word comes from the Spanish 'pongale,' put it.
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