Tuesday, Nov. 24, 2015: Astrophotographer Eric Wagner submitted a photo of an aurora over Glacier National Park in Montana, taken Oct. 17, 2015. He writes…Read More »
in an email message to Space.com: "My wife and I went to Montana for our first time, and I lucked out [as] the sky was clear for the first four nights we were there. … This was the second to last shot I took and captured the aurora, Big Dipper and an meteor all in one shot. (I thought it was an Iridium flare, but when I checked if any were visible at this time from my location, none were)."
Thursday, Nov. 19, 2015: This colorful deep space object lies about 2100 light-years away from Earth in the constellation of Cygnus. The Veil Nebula (NGC…Read More »
6995) is a supernova remnant, meaning that it is composed of the shreds of a once-massive star that ended its life in a giant explosion, flinging its outer layers into space. The hot ionized gas smashes into diffuse gaseous interstellar matter surrounding the dead star, lighting up dark space with complex structures of brightly colored gas. Image released October 2015.
Wednesday, Nov. 18, 2015: Elliptical galaxy NGC 3610 has been around for only about four billion years, and unusally for this type of galaxy, possesses…Read More »
a bright disc. Generally elliptical galaxies have a highly disordered structure, having been created from the merger of two or more disc galaxies. The presence of a disc within NGC 3610 gives a clue that it formed relatively recently. Image released Nov. 16, 2015.
Tuesday, Nov. 17, 2015: Saturn’s moon Dione appears in the foreground of this image while the leading hemisphere of another moon, Enceladus, lies in the…Read More »
background. Enceladus possesses much higher reflectivity than Dione, and thus Enceladus appears brighter against the dark background of space even though it lies further away in this image, released Nov. 16, 2015.
Monday, Nov. 16, 2015: The sun erupted with small but frequent flares during Nov. 3-5, 2015. This still image shows some of the activity which included…Read More »
small flares and numerous plasma prominences spurting out as magnetic forces competed with each other. NASA’s Solar Dynamics Observatory caught the action in a wavelength of extreme ultraviolet light that shows activity close to the sun's surface.
Credit: SA/Hubble & NASA and N. Gorin (STScI); Acknowledgement: Judy Schmidt
Wednesday, Nov. 11, 2015: Galaxy MCG+01-02-015 floats in space, seemingly accompanied by 3 local stars identified by the diffraction spikes radiating from…Read More »
them. All the other objects dotting the frame are galaxies. Despite the apparent abundance of neighbors, MCG+01-02-015, known as a void galaxy, actually floats in a vast emptiness, where only one atom exists per cubic meter. This galaxy is so far from others that if our galaxy, the Milky Way, were in a similar situation, humans would not have known of other galaxies until the 1960s.
Tuesday, Nov. 10, 2015: Two almost-symmetrical jets of dense gas spurt from a single source at the center of this image. The Atacama Large Millimeter/submillimeter…Read More »
Array (ALMA) captured this protostar, known as CARMA-7, and its jets, which lie approximately 1400 light-years from Earth within the Serpens South star cluster. At least 30 more protostars crowd this dense cluster, found in the constellation of Serpens (The Serpent), providing astronomers with excellent subjects for the study of stars interacting with their environment. The jets may be caused by periodic outbursts of gas ejected at high speed.
Monday, Nov. 9, 2015: Astrophotographer Brian Hancock sent in a photo of the Milky Way over a moai near Hanga Roa on Easter Island in the south Pacific…Read More »
Ocean, a province of Chile. He writes in an email message to Space.com: “Just wanted to share a ... [photo] from a recent trip to Chile this past October. I honestly was totally lost when I first looked up — familiar constellations like Sagittarius and Scorpius were so ‘out of place’ that I didn't recognize them at first. [This] photo is from a night of observing at a moai near Hanga Roa. It is right by the shore and clouds rolled in as the Milky Way hovered above.”
Friday, Nov. 6, 2015: Light departed this galaxy cluster, MOO J1142+1527, 8.5 billion years ago. The red galaxies in the center of the image form the heart…Read More »
of the galaxy cluster. Multi-wavelength observations combined to create this color image, including these sources: Infrared observations from NASA's Spitzer Space Telescope (red); near-infrared and visible light captured by the Gemini Observatory atop Mauna Kea in Hawaii (green and blue); and radio light from the Combined Array for Research in Millimeter-wave Astronomy (CARMA), near Owens Valley in California (purple). Along with galaxies, clusters also contain a reservoir of hot gas with temperatures in the tens of millions of degrees Celsius/Kelvin. Researchers used Less «
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Credit: James Younger
Thursday, Nov. 5, 2015: Astrophotographer James Younger sent in a photo of a meteor he caught on Nov. 3, 2015, from Vancouver Island, British Columbia,…Read More »
Canada. He writes in an email message to Space.com: “Out shooting the auroras last night. [I] did ok with that, but caught this nice fireball. Lots of big fireballs heading in the northerly direction for the last few weeks; looking forward to more the next couple nights. Saw half-a-dozen big fireballs last night, photographing from Vancouver Island.”
Credit: ESA/Hubble & NASA and N. Gorin (STScI); Acknowledgement: Judy Schmidt (http://www.geckzilla.com/)
Wednesday, Nov. 4, 2015: The galaxy Mrk 820 is classified as a lenticular galaxy, meaning it is between elliptical and spiral galaxies in shape. On the…Read More »
Hubble Tuning Fork, a classification system based on galaxy morphology, Mrk 820 is classed as type S0. The Hubble Tuning Fork, so-named because of the shape of the diagram, contains elliptical galaxies, smooth-blob shaped, on the “handle” of the fork, while the two “prongs” represent types of unbarred and barred spiral galaxies. Lenticular galaxies like Mrk 820 exist in the transition zone between ellipticals and spirals, lying right where the “fork” divides. (See an image of the Hubble Tuning Fork diagram.) Image released Nov. 2, 2015.
Tuesday, Nov. 3, 2015: Sunset falls on ESO’s La Silla Observatory, above the Atacama Desert of Chile. The site stands 7900 feet (2400 meters) above sea…Read More »
level at the southern edge of Chile’s Atacama Desert. Far from the light pollution of human residences, it affords an unobstructed view of the night sky for ESO’s telescopes. Image released Nov. 2, 2015.
Monday, Nov. 2, 2015: ESA’s Mars Express spacecraft obtained data used to make this oblique perspective view of an eroded crater in Mangala Valles region…Read More »
of Mars. During an intense period of flooding, water and sediments filled the crater which later eroded. Chaotic terrain then formed around it. Surrounding channels carved by flowing water also appear in the image, releaed Oct. 15, 2015.