(LISTEN THURSDAY) NASA to Livestream First Science Results from Juno Mission to Jupiter

 

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Scientists from NASA’s Juno mission to Jupiter will discuss their first in-depth science results in a media teleconference at 2 p.m. EDT Thursday, May 25, when multiple papers with early findings will be published online by the journal Science and Geophysical Research Letters.

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Supernova Explosions Over Millions of Years --"Source of Antimatter in the Milky Way"

 

 

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Scientists have known since the early 1970s that the inner parts of the Milky Way galaxy are a strong source of gamma-rays, indicating the existence of antimatter, but there had been no settled view on where the antimatter came from. Now, a team of international astrophysicists led by The Australian National University (ANU) has shown how most of the antimatter in the Milky Way forms. Antimatter is material composed of the antiparticle partners of ordinary matter – when antimatter meets with matter, they quickly annihilate each other to form a burst of energy in the form of gamma-rays.

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"Synestia" --A New Planet-Sized Object in the Cosmos Identified

 

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There's something new to look for in the heavens, and it's called a "synestia," according to planetary scientists Simon Lock at Harvard University and Sarah Stewart at the University of California, Davis. A synestia, they propose, would be a huge, spinning, donut-shaped mass of hot, vaporized rock, formed as planet-sized objects smash into each other.

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'Naked Singularities' Outside a Black Hole --"Could Cause the Laws of Physics to Break Down"

 

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Researchers, from the University of Cambridge, have used computer simulations to predict the existence of a so-called naked singularity, normally only found at the center of black holes and hidden from view – could exist in highly curved three-dimensional space, which interferes with Einstein's general theory of relativity causing the laws of physics to break down.

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XENON1T: World's Largest Dark Matter Detector --"Listens for Its Very Weak Voice"

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The best result on dark matter so far—and we just got started." This is how scientists behind XENON1T, now the most sensitive dark matter experiment world-wide, commented on their first result from a short 30-day run presented today to the scientific community. Laura Baudis, professor at the University of Zürich and professor Manfred Lindner from the Max-Planck-Institute for Nuclear Physics in Heidelberg, emphasize that this allowed XENON1T to achieve record "silence," which is necessary to listen for the very weak voice of dark matter.

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Origins of Life --Building Blocks of RNA Cornerstone of All Life on Earth "Formed as a Single Process"

 

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RNA is the corner stone of all life on Earth and probably carried the first information at the outset of life, but making RNA requires both purine and pyrimidine nucleotides to be simultaneously available. A solution to this problem has remained elusive for more than 50 years.

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Astronomers on Alert --"Strangest Star in the Milky Way Dimming Again This Week" (WATCH Weekend 'Galaxy' Stream)

 

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Tabby's Star, KIC 8462852, located deep in an outer spiral arm of our Milky Way galaxy, some 1,480 light-years from Earth is entering another of its irregular dimmings, dipping suddenly by 3 percent in just a few days. Penn State astronomer Jason Wright fielded questions during his visit to UC Berkeley SETI's Breakthrough Listen Lab via a livestream Friday afternoon about the event. Efforts to check for signals that could come from an intelligent civilization, have failed so far.

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"For Starships of the Future" --Astronomers Map Supermassive Black Holes in the Distant Universe

 

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Scientists from the Sloan Digital Sky Survey (SDSS) have constructed the first map of the universe based on the positions of supermassive black holes, which reveals the large-scale structure of the universe and precisely measures the expansion history of the universe back to when the universe was less than three billion years old. It will help improve our understanding of 'Dark Energy', the unknown process that is causing the universe's expansion to speed up.

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