Hubble’s Galaxies With Knots, Bursts #116 In the northern…

Hubble’s Galaxies With Knots, Bursts #116 In the northern constellation of Coma Berenices lies the impressive Coma Cluster — a structure of over a thousand galaxies bound together by gravity. via NASA http://www.nasa.gov/image-feature/goddard/2018/hubbles-galaxies-with-knots-and-bursts

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Stars and Dust in Corona Australis #119 Cosmic dust clouds and…

Stars and Dust in Corona Australis #119 Cosmic dust clouds and young, energetic stars inhabit this telescopic vista, less than 500 light-years away toward the northern boundary of Corona Australis, the Southern Crown. The dust clouds effectively block light from more distant background stars in the Milky Way. But the striking complex of reflection nebulae cataloged as NGC 6726, 6727, and IC 4812 produce a characteristic color as blue light from the region’s young, hot stars is reflected by the cosmic dust. The dust also obscures from view stars still in the process of formation. At top right, smaller yellowish nebula NGC 6729 bends around young variable star R Coronae Australis. Near it, glowing arcs and loops shocked by outflows from embedded newborn stars are identified as Herbig-Haro objects. On the sky this field of view spans about 1 degree. That corresponds to almost 9 light-years at the estimated distance of the nearby star forming region. via NASA https://apod.nasa.gov/apod/ap180920.html

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#43ap Wikipedia picture of the day on September 20,…

#43ap Wikipedia picture of the day on September 20, 2018:
European Brown Bear (Ursus arctos arctos) at Whipsnade Zoo
European Brown Bear.jpg.

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First Light Data for NASA’s Parker Solar Probe #116 Just…

First Light Data for NASA’s Parker Solar Probe #116 Just over a month into its mission, NASA’s Parker Solar Probe has returned first-light data from each of its four instrument suites. These early observations show that each of the instruments is working well. via NASA http://www.nasa.gov/image-feature/first-light-data-for-nasas-parker-solar-probe

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Salt Pepper and Ice #119 There’s a “camera”…

Salt Pepper and Ice #119 There’s a “camera” comet now moving across the sky. Just a bit too dim to see with the unaided eye, Comet 21P / Giacobini-Zinner has developed a long tail that makes it a good sight for binoculars and sensitive cameras. The movement of the Comet 21P on the sky was captured last week in the featured time-lapse video compressing 90 minutes into about 2.5 seconds. What might seem odd is that the 21P’s tail is not following the comet’s movement. This is because comet tails always point away from the Sun, and the comet was not moving toward the Sun during the period photographed. Visible far in the background on the upper left is the Salt & Pepper star cluster, M37, while the bright red star V440 Auriga is visible just about the frame’s center. This 2-km ball of dust-shedding ice passed its nearest to the Sun and Earth only last week and is now fading as it crosses into southern skies. Comet 21P should remain visible, however, and photogenic to stabilized cameras, for another month or so. via NASA https://apod.nasa.gov/apod/ap180918.html

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