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z8_GND_5296 is a dwarf galaxy [3] discovered in October 2013 which has the highest redshift that has been confirmed through the Lyman-alpha emission line of hydrogen, [2] placing it among the oldest and most distant known galaxies at approximately 13.1 billion light-years (4.0 Gpc) from Earth.
A symbiotic binary is a type of binary star system, often simply called a symbiotic star. They usually contain a white dwarf with a companion red giant . The cool giant star loses material via Roche lobe overflow or through its stellar wind , which flows onto the hot compact star, usually via an accretion disk .
Red dwarfs [12] are the smallest, coolest, and most common type of star. Estimates of their abundance range from 70% of stars in spiral galaxies to more than 90% of all stars in elliptical galaxies, [13] [14] an often quoted median figure being 72–76% of the stars in the Milky Way (known since the 1990s from radio telescopic observation to be a barred spiral). [15]
Chinese President Xi Jinping pledged $51 billion in funding and at least 1 million jobs for Africa on Thursday as the U.S. and China vie for influence there.
HD 141569 is an isolated [5] Herbig Ae/Be star [6] of spectral class A2Ve [7] approximately 364 light-years away in the constellation of Libra.The primary star has two red dwarf companions (orbiting each other) at about nine arcseconds.
Kamala Harris proposed a $100 billion investment package to revitalize key sectors of the U.S. economy.Speaking in Pittsburgh on Wednesday, the Vice President outlined her vision for an “America ...
The red flags raise a few questions for taxpayers. ... The post The Air Force's New Nuclear Missile System Will Now Cost $131.5 Billion appeared first on Reason.com. Show comments.
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