Butterfly of Combined Light

X-ray: NASA/CXC/U.Mich./S.Oey, IR: NASA/JPL, Optical: ESO/WFI/2.2-m

When NASA combines images from different telescopes they create amazing works of art and we learn a few things.

Explore this butterfly of combined light, known as NGC 1929, from NASA‘s Spitzer and Chandra space telescopes and ESO‘s ground-based telescope in Chile. What shapes or stories do you see? Leave a note in the comments below.

Star cluster NGC 1929 contains some of the most massive stars known to scientists. These massive stars spew intense radiation and a blistering stellar wind that blow huge bubbles in the surrounding nebula. The massive stars also end their short lives exploding as supernova which further helps carve out cavities in this region. Officially, the entire nebula is known as LHA 120-N 44, or just N 44. The vast superbubble is 325 by 250 light-years across; almost a hundred times the distance between the Sun and the nearest star. As you explore the image, look for dozens of smaller bubbles and the faint rim of another huge bubble on the left side of the nebula. Along the edges of the superbubble, new stars are forming

As beautiful as this destructive scene is, we wouldn’t be able to see it quite like this with our own eyes. Astronomers combined the light of several telescopes; all observing N44 in different wavelengths of light. X-rays from Chandra, in blue, reveal areas created by winds and shocks. Infrared data from Spitzer, in red, show where dust and cooler gas reside. Optical light from ESO’s telescope in Chile, light we can see with our eyes, outlines where ultraviolet radiation from the stars causes the gas to glow.

N 44 and NGC 1929 are found about 160,000 light-years from Earth in the Large Magellanic Cloud, a dwarf, irregular companion galaxy to our Milky Way Galaxy.

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