Space
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Pathfinder on Mars
1997-12-120 -
*kitten* space what has it done for me lately0
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Every journey has first step and every catalog a first entry.
First entries in six well-known deep sky catalogs appear in these panels, from upper left to lower right in chronological order of original catalog publication. From 1774, Charles Messier's catalog entry number 1 is M1, famous cosmic crustacean and supernova remnant the Crab Nebula. J.L.E. Dreyer's (not so new) New General Catalog was published in 1888. A spiral galaxy in Pegasus, his NGC 1 is centered in the next panel. Just below it in the frame is another spiral galaxy cataloged as NGC 2. In Dreyer's follow-on Index Catalog (next panel), IC 1 is actually a faint double star, though. Now recognized as part of the Perseus molecular cloud complex, dark nebula Barnard 1 begins the bottom row from Dark Markings of the Sky, a 1919 catalog by E.E. Barnard. Abell 1 is a distant galaxy cluster in Pegasus, from George Abell's 1958 catalog of Rich Clusters of Galaxies. The final panel is centered on vdB 1, from Sidney van den Bergh's 1966 study. The pretty, blue galactic reflection nebula is found in the constellation Cassiopeia.
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Every journey has first step and every catalog a first entry.
First entries in six well-known deep sky catalogs appear in these panels, from upper left to lower right in chronological order of original catalog publication. From 1774, Charles Messier's catalog entry number 1 is M1, famous cosmic crustacean and supernova remnant the Crab Nebula. J.L.E. Dreyer's (not so new) New General Catalog was published in 1888. A spiral galaxy in Pegasus, his NGC 1 is centered in the next panel. Just below it in the frame is another spiral galaxy cataloged as NGC 2. In Dreyer's follow-on Index Catalog (next panel), IC 1 is actually a faint double star, though. Now recognized as part of the Perseus molecular cloud complex, dark nebula Barnard 1 begins the bottom row from Dark Markings of the Sky, a 1919 catalog by E.E. Barnard. Abell 1 is a distant galaxy cluster in Pegasus, from George Abell's 1958 catalog of Rich Clusters of Galaxies. The final panel is centered on vdB 1, from Sidney van den Bergh's 1966 study. The pretty, blue galactic reflection nebula is found in the constellation Cassiopeia.
Cassiopeia is one of my very favorite constellations
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*kitten* you space.0 -
Roughly 50 million light-years away the little galaxy NGC 1559 has hosted a variety of spectacular exploding stars called supernovae.
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This image captures a close-up view of a storm with bright cloud tops in the northern hemisphere of Jupiter.3 -
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In late Jan. 2018, NASA’s Global-scale Observations of the Limb and Disk (GOLD) instrument was launched into space aboard a commercial satellite.
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Elongated Coronal Hole
Over the past week, the single, largest feature on the sun was a long coronal hole that stretched out across more than half the diameter of the sun (Mar. 13-15, 2018).
Coronal holes appear dark in certain wavelengths of extreme ultraviolet light like the one you see here. They are areas of open magnetic fields from which solar wind rushes out into space. This area likely generated the beautiful aurora that were reportedly observed on March 14th in regions near Earth's poles.
With the Earth set in the image to show scale, you get a good sense of just how extensive this hole is.2 -
This image from the NASA/ESA Hubble Space Telescope shows the galaxy cluster PLCK G004.5-19.5.
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Bullet_with_Butterfly_Wings wrote: »
You might enjoy this:
Images from the Hubble Telescope:
https://www.nasa.gov/mission_pages/hubble/multimedia/index.html
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Researchers Catch Supermassive Black Hole Burping - Twice
Astronomers have caught a supermassive black hole in a distant galaxy snacking on gas and then “burping” – not once, but twice.1 -
Bullet_with_Butterfly_Wings wrote: »
You might enjoy this:
Images from the Hubble Telescope:
https://www.nasa.gov/mission_pages/hubble/multimedia/index.html
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Hubble’s Exquisite View of a Stellar Nursery
An underlying population of infant stars embedded in the nebula NGC 346 are still forming from gravitationally collapsing gas clouds.2 -
Investigating Mars: Arabia Terra Dunes
This is a false color image of the dune field in the Arabia Terra crater. In this combination of bands, sand appears as a blue to dark blue color. In this image, the smaller areas of sand are easily visible and indicate the large amount of available material for creating dunes.
Located in eastern Arabia is an unnamed crater, 120 kilometers (75 miles) across. The floor of this crater contains a large exposure of rocky material, a field of dark sand dunes, and numerous patches of what is probably fine-grain sand. The shape of the dunes indicate that prevailing winds have come from different directions over the years. The THEMIS VIS camera contains 5 filters.
The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations of the surface not easily identified in a single band image.
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