This cool space wallpaper is a composite color image of the Herschel PACS 70, 100, 160 micron-wavelength images of Betelgeuse. The star (center) is surrounded by a clumpy envelope of material in ...

This cool space wallpaper, centred on the B[e] star HD 87643, beautifully shows the extended nebula of gas and dust that reflects the light from the star. The central star's wind appears to have ...