stunning vista represents the highest resolution image
ever made of the
Galaxy (aka M31) at ultraviolet
Recorded by NASA's
the mosaic is composed of 330 individual images covering
a region 200,000 light-years wide.
shows about 20,000 sources,
dominated by hot, young stars
and dense star clusters that radiate strongly in
course, the Andromeda
Galaxy is the closest large
to our own Milky Way, at a distance of some 2.5 million light-years.
Just slide your cursor over the image to compare the appearance
island universe in optical light
with its ultraviolet portrait.