Latest Star Stories
John P. Millis, PhD for redOrbit.com – Your Universe Online Astronomers have long been aware of supernovae – brilliant explosions ejecting massive amounts of gas and energy into the surrounding medium. But occasionally one of them is different, set apart, unlike anything we have seen before. Researchers with the Harvard-Smithsonian Center for Astrophysics (CfA) have announced in a new paper that one such event has been discovered. Supernovae are split into sub-types. While some...
April Flowers for redOrbit.com - Your Universe Online The densest matter in the Universe outside of black holes is contained in neutron stars, the ultra-dense cores left behind after massive stars collapse. One of the most reliable determinations yet of the relationship between the radius of a neutron star and its mass has been provided by new results from NASA's Chandra, along with European Space Agency's (ESA) XMM-Newton and NASA's Rossi X-ray Timing Explorer (RXTE), which constrain how...
Lawrence LeBlond for redOrbit.com - Your Universe Online New research from Carnegie Institution for Science looks at how gas giants similar to Jupiter and Saturn formed and evolved. Using theoretical modeling, lead researcher Alan Boss provides clues that gas giants may form in the presence of gas disks that surround stars in their infancy. The work was recently published in the Astrophysical Journal. By observing young stars that are surrounded by gas disks, Boss demonstrated that...
Lee Rannals for redOrbit.com - Your Universe Online An international team of astronomers are reporting in The Astrophysical Journal they have spotted what resembles a soccer ball sitting in the dying star M1-11. Five instruments helped astronomers detect C60 fluorine in the dying star, which are molecules of carbon with 60 atoms arranged in patterns that resemble a soccer ball. Astronomers used the Subaru Telescope, the Spitzer Space Telescope (SST), ESO's Very Large Telescope, the...
Lee Rannals for redOrbit.com – Your Universe Online White dwarf supernovae that occurred millions of years ago have popped up in the Virgo Cluster galaxy and part of the sky labelled as "anonymous." Southern Methodist University (SMU) researchers say they've confirmed two bright stars that showed up in our skies in February and November are supernovae. Supernovae are the result of stars that have reached the end of their life, resulting in a large explosion that can consume anything...
Former Men's Health Editor-in-Chief to help oversee Men's Fitness and consult on other titles NEW YORK, Feb. 27, 2013 /PRNewswire/ -- American Media, Inc. announced today that it has hired David Zinczenko as Consulting Editorial Director, reporting directly to Chairman and CEO David Pecker. Zinczenko, the former Executive Vice President and General Manager of Rodale Inc.'s Healthy Living Group, who oversaw all operations for the Men's Health, Women's Health and Prevention brands--as...
18 New Hotels, 5 New Restaurants and 4 New Spas Earn Five-Star Honors, including Big Winners in Southern California, and First-Time Five-Star Hotel Award Winners in Beijing and Rhode Island LOS ANGELES, Feb. 26, 2013 /PRNewswire/ -- Forbes Travel Guide today unveiled its 55(th) announcement of Five-Star, Four-Star and Recommended hospitality establishments worldwide, including eighteen new hotels, five new restaurants and four new spas that achieved the Five-Star Award for 2013....
Bright Education™, developer of The Standard Method for Mastering the Standards™, offers practice system with latest study techniques to increase student performance on STAR tests. San Diego, CA (PRWEB) February 21, 2013 Back to school in 2013 means California teachers and students are gearing up for STAR testing, the program used to determine how well students and schools are performing. Depending on each school’s schedule and the guidelines provided by the California Department of...
April Flowers for redOrbit.com - Your Universe Online On large astronomical scales, gravity remains the dominant force acting on heavenly bodies, from asteroids and exoplanets to solar systems and supermassive black holes. But when it comes to young stars in clustered galaxies, researchers have found that the dynamics of these crowded environments cannot be fully accounted for by simple understanding of gravity. A new study, led by the Kavli Institute for Astronomy and Astrophysics...
NEW YORK, Feb. 20, 2013 /PRNewswire/ - Numerous titles under the AMI Digital publishing umbrella have delivered record-breaking numbers in January, 2013, reports David J. Pecker, Chairman, President and CEO of American Media, Inc. (AMI). "The combination of top-drawer editorial and the expansion of our digital capabilities has created a great synergy for our wide range of media content," he said. "These numbers are a clear indication of the power of AMI's category-leading brands."...
Latest Star Reference Libraries
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...
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...
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...
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...
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: --...
