Quantcast
Last updated on April 24, 2014 at 10:01 EDT

Latest Star Stories

2014-01-03 16:22:11

Sweepstakes Begins This Sunday, Jan. 5, and Continues Through March 9 Season Two of Ultimate Survival Alaska Airs Sundays at 9 PM ET/PT on the National Geographic Channel WASHINGTON, Jan. 3, 2014 /PRNewswire-USNewswire/ -- Viewers looking for a chance to test their meddle like the survival and wilderness experts seen on National Geographic Channel's Ultimate Survival Alaska will get their chance with the launch of the Ultimate Survival Alaska Sweepstakes, a multiplatform consumer...

Discovery Helps Explain Binary Systems
2013-12-31 14:59:55

Lee Rannals for redOrbit.com - Your Universe Online Astronomers using the Very Large Array (VLA) have made a discovery that helps explain how double-star systems form. Half of all sun-like stars are part of double or multiple-star systems, and scientists have long debated over how these systems form. The latest discovery of previously-unseen binary companions to a pair of young protostars lends strong support for one of these explanations. "The only way to resolve the debate is to...

Astronomers Search For Cause Of Massive Star Formation
2013-12-21 04:25:12

redOrbit Staff & Wire Reports - Your Universe Online In an attempt to determine why massive stars – those with at least eight times the mass of our Sun – grow so much larger than most other stars in our galaxy, astronomers used the ALMA telescope to examine the cores of Infrared Dark Clouds roughly 10,000 light-years away. Infrared Dark Clouds are located in the direction of the constellations of Aquila and Scutum, and they are among the darkest, densest and coldest clouds in...

2013-12-20 23:25:03

The best in Japanese programming is now available in High Definition. Centennial, CO (PRWEB) December 20, 2013 International Media Distribution (IMD) today announced the number one Japanese channel in North America is now available in high definition to AT&T U-verse TV® customers across the country. TV JAPAN HD is now live on AT&T U-verse TV Channel 3681. The standard definition version of TV JAPAN is available on Channel 3680. The regular monthly subscription price for TV...

New Star Counting App Asks Citizen Scientists To Map The Skies
2013-12-20 15:46:51

Lee Rannals for redOrbit.com - Your Universe Online German researchers are asking citizen scientists to use an app to help them count the stars in their city to see how light pollution affects what shows up in the night sky. Scientists developed the “Loss of the Night" app to measure how the brightness of the sky changes over time, as lighting technologies change. The app has been expanded to support 11 languages to gather data from as many regions as possible. “Since the app...

2013-12-19 12:29:36

DENVER, Dec. 19, 2013 /PRNewswire/ -- Medical Simulation Corporation (MSC), a health care performance improvement company that accelerates patient access to new medical therapies and evidence-based practices, today announced the addition of four new members to its executive leadership team: Mary Beth Loesch, Jennie Hoff, Herb von Winckelmann and Bob Vidal. "Medical Simulation Corporation is thrilled to welcome these four exceptional executives to the MSC team," says Bill Younkes,...

Urban Galactic Clusters Stopped Forming Stars Billions Of Years Ago
2013-12-19 12:36:09

Brett Smith for redOrbit.com - Your Universe Online A new study based on data from NASA’s Spitzer Space Telescope has revealed new details about so-called urban galaxies that exist in large clusters. The study found that these clusters stopped forming new stars about 9 billion years ago, much later than previously thought. These galactic cities were said to have eventually either used up or lost their fuel. Meanwhile, more rural galaxies are still actively forming stars. "We know...

Supernova Legacy Survey Astronomers Reveal New Class Of Supernovae
2013-12-19 04:50:57

April Flowers for redOrbit.com - Your Universe Online Two of the brightest and most distant supernovae ever recorded have been discovered by astronomers affiliated with the Supernova Legacy Survey (SNLS). The findings, published in The Astrophysical Journal, reveal that the supernovae are 10 billion light-years away and a hundred times more luminous than a normal supernova. The extreme luminosity of these supernovae cannot be explained by the mechanism that powers most supernovae —...

2013-12-18 13:21:08

New types of assessments will be needed to measure student learning once the Next Generation Science Standards (NGSS) are implemented, says a new report from the National Research Council.  The tests that states currently use emphasize factual knowledge and were not designed to assess the type of understanding envisioned by the standards, which emphasize depth of knowledge based on the ability to integrate core content with science and engineering practices. The report describes a new...

2013-12-16 23:21:45

Olery’s unique and objective Guest Experience IndexTM will be leading in monitoring star rating for Abu Dhabi hotels. Amsterdam, The Netherlands (PRWEB) December 16, 2013 Olery (http://www.olery.com), the leading provider of guest experience management tools for the hospitality industry, announced today that is has signed a deal with the Abu Dhabi Tourism and Culture Authority to provide them with the technology behind their recently announced next step in in their hotel classification...


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...

7_9d2e259c13e5a649c6295922288878812
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...

7_4b235c0bfbfc8504a41844f9c48ad8962
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...

More Articles (23 articles) »