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Recent Articles
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Topic: Red Giant Star
The Jupiter-size object, called WD 1856 b, is about seven times larger than the white dwarf, named WD 1856+534. It circles this stellar cinder every 34 hours, more than 60 times faster than Mercury orbits our Sun. ![]() WD 1856 b, a potential planet the size of Jupiter, orbits its dim white dwarf star every 36 hours and is about seven times larger. (NASA’s Goddard Space Flight Center) «Read the rest of this article» Sections: Technology | No Comments
NASA’s SOFIA telescope observes Supernova ExplosionNASA Headquarters
Supernova explosions are among the most powerful events in the universe, with a peak brightness equivalent to the light from billions of individual stars. The explosion also produces a blast wave that destroys almost everything in its path, including dust in the surrounding interstellar medium, the space between the stars. ![]() Artist’s concept illustrating Supernova 1987A as the powerful blast wave passes through its outer ring and destroys most of its dust, before the dust re-forms or grows rapidly. SOFIA observations reveal that dust — a building block of stars and planets — can re-form or grow immediately after the catastrophic damage caused by the supernova’s blast wave. (NASA/SOFIA/Symbolic Pictures/The Casadonte Group) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Spitzer Space Telescope reveals triggering events behind some Supernova ExplosionsWritten by Whitney Clavin
New results from NASA’s Spitzer Space Telescope have revealed a rare example of Type Ia explosion, in which a dead star “fed” off an aging star like a cosmic zombie, triggering a blast. The results help researchers piece together how these powerful and diverse events occur. ![]() This infrared image from NASA’s Spitzer Space Telescope shows N103B — all that remains from a supernova that exploded a millennium ago in the Large Magellanic Cloud, a satellite galaxy 160,000 light-years away from our own Milky Way. (NASA/JPL-Caltech/Goddard) «Read the rest of this article» Sections: Technology | No Comments
Astronomers observe Red Giant destroying one of it’s Planets, Could our Sun do the same to the EarthWritten by Dr. Tony Phillips
Could the same thing happen to Earth? Yes indeed, says Alex Wolszczan, a member of the research team from Penn State University: “A similar fate may await the inner planets in our solar system when the sun becomes a red giant some five billion years from now.” «Read the rest of this article» Sections: News | No Comments
NASA’s Chandra X-ray Observatory sees Remarkable Outburst from Old Black HoleWritten by Janet Anderson
The discovery, made by astronomers using NASA’s Chandra X-ray Observatory, provides new insight into the nature of a mysterious class of black holes that can produce as much energy in X-rays as a million suns radiate at all wavelengths. ![]() An extraordinary outburst from a black hole where its X-ray output increased at least 3,000 times -- has been seen with NASA's Chandra X-ray Observatory in the galaxy M83. Chandra observed what is called a ULX, or ultraluminous X-ray source. The panel on the left features an optical view of the full M83 galaxy, while the right panel shows a close up of the region where the ULX was found with data from Chandra (pink) and Hubble (blue and yellow). The remarkable behavior of this ULX in M83 provides direct evidence for a population of older, volatile, stellar-mass black holes. «Read the rest of this article» Sections: Technology | No Comments
NASA’s Wide-field Infrared Survey Explorer (WISE) catches Aging Star Erupting with DustWritten by Whitney Clavin
The star, catalogued as WISE J180956.27-330500.2, was discovered in images taken during the WISE survey in 2010, the most detailed infrared survey to date of the entire celestial sky. It stood out from other objects because it glowed brightly with infrared light. When compared to images taken more than 20 years ago, astronomers found the star was 100 times brighter. ![]() It's a dust bunny of cosmic proportions. Astronomers used images from NASA's Wide-field Infrared Survey Explorer, or WISE, to locate an aging star shedding loads of dust (orange dot at upper left). Only one other star, called Sakurai's object, has been caught erupting with such large amounts of dust. The process is a natural part of aging for stars like our sun. As they puff up into red giants, they shed dust that is later recycled back into other stars, planets, and in the case of our solar system, living creatures. (Image credit: NASA/JPL-Caltech) «Read the rest of this article» Sections: Technology | No Comments
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