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Milky Way
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Dust and gas disk around HD142527. The dust and gas distributions observed by ALMA are shown in red and green, respectively. Near-infrared image taken by the NAOJ Subaru Telescope is shown in blue. The image clearly shows that the dust is concentrated in the northern (upper) part of the disk. The circle in the image shows the position of the dust concentration, in which planets are thought to be formed. Credit: ALMA (ESO/NAOJ/NRAO), NAOJ, Fukagawa et al.
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Disk around HD142527 observed by ALMA. The color assignment is the same as Figure 1. Credit: ALMA (ESO/NAOJ/NRAO), Fukagawa et al.
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This false-color Very Large Array image of the ionized gas in the star forming region Sgr B2 Main was used to detect small but significant changes in brightness of several of the sources. The spots and filaments in this image are regions of ionized gas around massive stars. The changes in brightness detected support a model that could solve a 30-year-old question in high mass star formation. Credit: NRAO/Agnes Scott College
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Caption: Observations of the massive star forming region Sgr B2 were made with the Karl G. Jansky Very Large Array (VLA) in 1989 and 2012. The VLA has been operational since 1980 and received a major upgrade that was completed in 2011. Credit: NRAO/AUI
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Dark Disks Around Young Stars Herbig-Haro 30 is the prototype of a gas-rich "young stellar object" disk around a star. The dark disk spans 40 billion miles (64 billion kilometers) in this image from NASA's Hubble Space Telescope, cutting the bright nebula in two and blocking the central star from direct view. Volunteers can help astronomers find more disks like this through, which incorporates data from NASA's Wide-field Infrared Survey Explorer, or WISE. This image was taken by Hubble's former instrument, the Wide Field Planetary Camera 2, built by NASA's Jet Propulsion Laboratory, Pasadena, Calif.
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Representative star types in the Morgan-Keenan system, with the smallest and coolest on the left, called M-type, on up to monstrous, hot, short-lived O-type stars on the right. Credit: Wikipedia/LucasVB
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Stars hotter than the Sun, such as F-type stars, have more extended habitable zones, while stars cooler than the Sun have comparatively tighter orbital bands where water can remain liquid on a planetary or lunar surface. Credit: NASA/Kepler Mission/Dana Berry
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A diagram showing the brightest galaxies within 20 million light years of the Milky Way, as seen from above. The largest galaxies, here shown in yellow at different points around the dotted line, make up the ‘Council of Giants’. Credit: Marshall McCall / York University. Click for a full-size image
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A diagram showing the brightest galaxies within 20 million light years of the Milky Way, this time viewed from the side. Credit: Marshall McCall / York University. Click for a full-size image
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This is an image of the exoplanet Beta Pictoris b taken with the Magellan Adaptive Optics VisAO camera. This image was made using a CCD camera, which is essentially the same technology as a digital camera. The planet is nearly 100,000 times fainter than its star and orbits its star at roughly the same distance as Saturn from our Sun. Credit: Jared Males/University of Arizona
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This is an artist's impression of a young, giant exoplanet orbiting its host star. Credit: NASA/JPL-Caltech
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The solar system to scale. The diameter of Jupiter (middle, with red spot) is about 11 times that of Earth (third planet from the left). Credit: Lunar and Planetary Institute
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These are the discovery images of 2012 VP113, affectionately called "Biden," because of the VP in the provisional name. It has the most distant orbit known in our Solar System. Three images of the night sky, each taken about two hours apart, were combined into one. The first image was artificially colored red, second green and third blue. 2012 VP113 moved between each image as seen by the red, green and blue dots. The background stars and galaxies did not move and thus their red, green and blue images combine to showup as white sources. Courtesy Scott Sheppard and Chad Trujillo.
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This is an image of a solar flare. Scientists have for the first time witnessed the mechanism behind explosive energy releases in the Sun's atmosphere. Credit: NASA/SDO and AIA
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The artist's concept depicts Kepler-186f , the first validated Earth-size planet to orbit a distant star in the habitable zone. [Click link below for more.] Image Credit: NASA Ames/SETI Institute/JPL-Caltech
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The diagram compares the planets of our inner solar system to Kepler-186, a five-planet star system about 500 light-years from Earth in the constellation Cygnus. The five planets of Kepler-186 orbit an M dwarf, a star that is is half the size and mass of the sun. [Click link below for more.] Image Credit: NASA Ames/SETI Institute/JPL-Caltech
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