See Explanation.  Clicking on the picture will download  the highest resolution version available.

See Explanation. Clicking on the picture will download the highest resolution version available.

The Andromeda Galaxy (M31) ~ A massive spiral 2.5 million light-years away, over twice the diameter of our own Milky Way, it's the largest nearby galaxy. Andromeda's population of bright young blue stars lie along its sweeping spiral arms. (Spitzer Space Telescope)

The Andromeda Galaxy (M31) ~ A massive spiral 2.5 million light-years away, over twice the diameter of our own Milky Way, it's the largest nearby galaxy. Andromeda's population of bright young blue stars lie along its sweeping spiral arms. (Spitzer Space Telescope)

A new portrait of the Milky Way's neighbor, Andromeda, shows our twin galaxy in a whole new light thanks to a new instrument on Japan's Subaru telescope at the summit of Hawaii's Mauna Kea.

A new portrait of the Milky Way's neighbor, Andromeda, shows our twin galaxy in a whole new light thanks to a new instrument on Japan's Subaru telescope at the summit of Hawaii's Mauna Kea.

This frame from a video shows Jupiter as revealed by a powerful telescope sensitive to the giant planet's tropospheric temperatures and cloud thickness. It combines observations made on Jan. 14, 2017, using the Subaru Telescope in Hawaii.

This frame from a video shows Jupiter as revealed by a powerful telescope sensitive to the giant planet's tropospheric temperatures and cloud thickness. It combines observations made on Jan. 14, 2017, using the Subaru Telescope in Hawaii.

July 01 2017 at 12:36AM Mid-infrared images from the Subaru telescope extend Juno spacecraft discoveries https://phys.org/news/2017-06-mid-infrared-images-subaru-telescope-juno.html  [PhysOrg]

July 01 2017 at 12:36AM Mid-infrared images from the Subaru telescope extend Juno spacecraft discoveries https://phys.org/news/2017-06-mid-infrared-images-subaru-telescope-juno.html [PhysOrg]

This false-color image of Jupiter was taken on May 18, 2017, with the Subaru Telescope in Hawaii. The Great Red Spot appears at the lower center of the planet as a cold region with a thick cloud layer.

This false-color image of Jupiter was taken on May 18, 2017, with the Subaru Telescope in Hawaii. The Great Red Spot appears at the lower center of the planet as a cold region with a thick cloud layer.

This false-color image of Jupiter was taken on May 18, 2017, with a mid-infrared filter centered at a wavelength of 8.8 microns, at the Subaru Telescope in Hawaii, in collaboration with observations of Jupiter by NASA's Juno mission. Credit: NAOJ/NASA/JPL-Caltech.

This false-color image of Jupiter was taken on May 18, 2017, with a mid-infrared filter centered at a wavelength of 8.8 microns, at the Subaru Telescope in Hawaii, in collaboration with observations of Jupiter by NASA's Juno mission. Credit: NAOJ/NASA/JPL-Caltech.

Bright Spiral Galaxy M81 One of the brightest galaxies in planet Earth's sky is similar in size to our Milky Way Galaxy: big, beautiful M81. Image Credit: Subaru Telescope (NAOJ), Hubble Space Telescope; Processing & Copyright: Roberto Colombari & Robert Gendler

Bright Spiral Galaxy M81 One of the brightest galaxies in planet Earth's sky is similar in size to our Milky Way Galaxy: big, beautiful M81. Image Credit: Subaru Telescope (NAOJ), Hubble Space Telescope; Processing & Copyright: Roberto Colombari & Robert Gendler

Astronomy Picture of the Day for 13 Aug 2014. It is a familiar sight to sky enthusiasts with even a small telescope. There is much more to the Ring Nebula (M57), however, than can be seen through a small telescope.

Astronomy Picture of the Day for 13 Aug 2014. It is a familiar sight to sky enthusiasts with even a small telescope. There is much more to the Ring Nebula (M57), however, than can be seen through a small telescope.

Japans Subaru Telescope discovers new faint dwarf galaxy

Japans Subaru Telescope discovers new faint dwarf galaxy

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