Hello, Information from NASA NASA’s first large scale, piloted X-plane in more than three decades is cleared for final assembly and integration of its systems following a major project review by senior managers held Thursday at NASA Headquarters in Washington.
December 16, 2019
from NASA https://ift.tt/2r1u5a4
December 16, 2019
from NASA https://ift.tt/2r1u5a4
Astronomy news update from NASA : 
Can magnetic fields help tell us how spiral galaxies form and evolve? To find out, the HAWC+ instrument on NASA's airborne (747) SOFIA observatory observed nearby spiral galaxy M77. HAWC+ maps magnetism by observing polarized infrared light emitted by elongated dust grains rotating in alignment with the local magnetic field. The HAWC+ image shows that magnetic fields do appear to trace the spiral arms in the inner regions of M77, arms that likely highlight density waves in the inflowing gas, dust and stars caused by the gravity of the galaxy's oval shape. The featured picture superposes the HAWC+ image over diffuse X-ray emission mapped by NASA's NuSTAR satellite and visible light images taken by Hubble and the SDSS. M77 is located about 47 million light years away toward the constellation of the Sea Monster (Cetus).
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Can magnetic fields help tell us how spiral galaxies form and evolve? To find out, the HAWC+ instrument on NASA's airborne (747) SOFIA observatory observed nearby spiral galaxy M77. HAWC+ maps magnetism by observing polarized infrared light emitted by elongated dust grains rotating in alignment with the local magnetic field. The HAWC+ image shows that magnetic fields do appear to trace the spiral arms in the inner regions of M77, arms that likely highlight density waves in the inflowing gas, dust and stars caused by the gravity of the galaxy's oval shape. The featured picture superposes the HAWC+ image over diffuse X-ray emission mapped by NASA's NuSTAR satellite and visible light images taken by Hubble and the SDSS. M77 is located about 47 million light years away toward the constellation of the Sea Monster (Cetus).
from NASA https://ift.tt/2PMMXlv
via IFTTT
Our new 'Word Of The Day' article update : prototype , n :
An original form or object which is a basis for other forms or objects (particularly manufactured items), or for its generalizations and models. An early sample or model built to test a concept or process. (computing) A declaration of a function that specifies the name, return type, and parameters, but none of the body or actual code. (semantics) An instance of a category or a concept that combines its most representative attributes.
An original form or object which is a basis for other forms or objects (particularly manufactured items), or for its generalizations and models. An early sample or model built to test a concept or process. (computing) A declaration of a function that specifies the name, return type, and parameters, but none of the body or actual code. (semantics) An instance of a category or a concept that combines its most representative attributes.
