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EN_00961142_0001

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40,00 EUR Internet - private use
Strictly for editorial, single use on a personal (nonprofit) web site, Internet portal, social media (Facebook, Instagram etc.), blog for 1 year. Not for resale. Maximum picture size 2000px.
75,00 EUR Internet commercial use
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Editorial Use Only Mandatory Credit: Photo by NASA/JPL-Caltech / Rex Features ( 1306628b ) A baby star sprouting two identical jets (green lines emanating from fuzzy star). The jet on the right had been seen before in visible-light views, but the jet at left -- the identical twin to the first jet -- could only be seen in detail with Spitzer's infrared detectors. This left jet was hidden behind a dark cloud, which Spitzer can see through. Images taken with NASA's Spitzer Space Telescope - 2011 The Spitzer image shows that both of the twin jets, in a system called Herbig-Haro 34, are made up of identical knots of gas and dust, ejected one after another from the area around the star. By studying the spacing of these knots, and knowing the speed of the jets from previous studies, astronomers were able to determine that the jet to the right of the star punches its material out 4.5 years later than the counter-jet. The new data also reveal that the area from which the jets originate is contained within a sphere around the star, with a radius of 3 astronomical units. An astronomical unit is the distance between Earth and the sun. Previous studies estimated that the maximum size of this jet-making zone was 10 times larger. The wispy material is gas and dust. Arc-shaped bow shocks can be seen at the ends of the twin jets. The shocks consist of compressed material in front of the jets. The Herbig-Haro 34 jets are located at approximately 1,400 light-years away in the Orion constellation.

headline rex - arch

created date 2011-04-12

credit NASA/JPL-Caltech / Rex Features/EAST NEWS

source Rex Features

byline NASA/JPL-Caltech / Rex Features

original transmission reference Rex_NASA_IMAGES_1306628B

weight 0,37MB

size 17cm x 19cm by 300dpi

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