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that man got the black up now you're gonna be getting a TV picture now
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hi I'm Stephanie mila Teresa scientists working with NASA swift satellite at
goddard space flight center in greenbelt maryland this is my 31 the nearest large
spiral galaxy to our own it's about two-and-a-half million light-years away
and more than 220,000 light-years across this is how i used to seeing it in the
visible light capture ground-based telescopes invisible I'd never tells the
whole story so between may and july two thousand eight Swift aight reviled
optical telescope captured 330 images of m31 and three aight reviled wavelength
the total exposure time 24 hours we combine these images into this mosaic
it's the most detailed view of m31 in the ultraviolet to date the first thing
you notice is the striking difference between the galaxy's central college and
inspire arms the budget is smooth and redder because it's full of older and
cooler stars very few new stars from here because most of the materials
needed to make them have been depleted in contrast and 31 spiral arms sparkle
attends classes of hot young loose tops as in our own galaxy that this conspire
arms contain most of the gas and dust needed to produce new generations of
stars m31 clusters are especially plentiful in a giant ring around the
galaxy
it's about a hundred and fifty thousand light-years across this ring of fire
exists because of tile interactions with small satellite galaxies
speaking of which this is my 32 one of many dwarf galaxies orbiting m31 these
galaxies are usually not very bright in the ultraviolet because they let young
stars but m32 score is so bright in the UV because it likely contains many blue
and gold stars
the Swift mosaic review some 20,000 you resources it's important to study star
formation processes in nearby galaxies so we can understand the bruising in
distant galaxies this rich portray in three different ultraviolet wavelengths
allows us to study how m31 stars live and die as much greater detail than
previously possible
I hinder about the only person
the TV coverage of the things and that man got the black up now you're gonna
feel pretty picture mail yet we are getting a TV picture
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wait