Enjoy Space : Hubble and Hanny’s mysterious object
Hanny’s mysterious object as examined by the Hubble space telescope. At the top, galaxy IC 2497 from which it comes. The object itself is this strange green gas cloud which is as big as our galaxy.
Credit: NASA/ESA/William Keel (University of Arizona, Tuscaloosa)/ Galaxy Zoo Team
This multi-frequency all-sky image of the microwave sky has been composed using data from Planck covering the electromagnetic spectrum from 30 GHz to 857 GHz.
The mottled structure of the CMBR, with its tiny temperature fluctuations reflecting the primordial density variations from which today’s cosmic structure originated, is clearly visible in the high-latitude regions of the map. The central band is the plane of our Galaxy. A large portion of the image is dominated by the diffuse emission from its gas and dust. The image was derived from data collected by Planck during its first all-sky survey and comes from observations taken between August 2009 and June 2010. This image is a low- resolution version of the full data set.
To the right of the main image, below the plane of the Galaxy, is a large cloud of gas in our Galaxy. The obvious arc of light surrounding it is Barnard’s Loop – the expanding bubble of an exploded star. Planck has seen whole other galaxies. The great spiral galaxy in Andromeda, 2.2 million light-years from Earth, appears as a sliver of microwave light, released by the coldest dust in its giant body. Other, more distant, galaxies with supermassive black holes appear as single points of microwaves dotting the image.
Planck was built for ESA by the Prime Contractor Thales Alenia Space (Cannes, France) with contributions from space industry drawn from ESA’s 18 Member States. Because of differing accounting procedures in the many bodies contributing, precise costings are impossible to give. However, the overall cost to ESA and its Member State institutions as well as cooperating agencies world- wide (including NASA and Canadian Space Agency) in round figures is 600M€
Credits: ESA/ LFI & HFI Consortia
via www.esa.int
macmankev:slutgarden:postacid:jakethefinn:(via addictedtodopamine)
Invaderxan, I’ll leave this here for you.
The most badass bok globule in the whole damn Carina nebula!
It just a nebula guys I hope I don’t hurt anyone D:
Supernovae mystery solved
Supernovae are gigantic stellar explosions that can be seen across the entire universe. Type Ia supernovae are a relatively homogeneous class of stellar explosions, which researchers use as ‘standard candles’ to observe the acceleration of the universe.
It has long been known, however, that they exhibit considerable variation in their spectra and the origin of the differences has been unknown. Now scientists have shown that supernovae explode asymmetrically and the difference in their appearance is simply due to the directions from which the supernovae are being observed.
There is now broad consensus that the relative homogeneity of type Ia supernovae is due to their having the same origin, namely a white dwarf in a binary system, absorbing material thrown out from its companion star, and when it reaches 1.4 solar masses it explodes as a supernova.
Supernovae that fade in the same way may exhibit quite different behaviour in how fast their expanding material slows down (the so-called velocity gradient). With new detailed studies, scientists have now shown that the velocity gradient is closely associated with these supernovae exploding asymmetrically, where the ignition takes place away from the centre. So the different appearances of the supernovae simply depend on the point of view they are observed from.
Type Ia supernovae have played a crucial role in cosmology because they can be used to measure the distances across the universe. The results give new insight into how these stars explode and solving the problem with their different appearances, and also brings good news for the use of ‘standard candles.’
Image: A schematic picture of the structure of a supernova Ia. The ashes of the first phases of the explosion, right after ignition (yellow), are offset with respect to the centre of the ejected material. Depending on where we view the supernova from, it will demonstrate different spectral properties.
Source: Niels Bohr Institute | See also: SPACE.com
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Space the Beyond collapses all news, art & fun stuff I found around the web about space exploration, rebloging them here.Credits for all the media posted in this thread obviously are property of their owners.
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