Astronomy Picture of the Day

Explanation: A truly giant complex of emission nebulae, N44 is about 1,000 light-years across. It shines in southern skies as a denizen of our neighbouring galaxy, the Large Magellanic Cloud, 170,000 light-years away. Winds and intense radiation from hot, young, luminous stars in N44 excite and sculpt filaments and streamers of the glowing nebular gas. But supernovae - the death explosions of the massive short lived stars - have also likely contributed to the region's enormous, blown-out shapes. The cluster of young stars seen near the centre lies in a superbubble nearly 250 light-years across. This detailed, false-colour view of the intricate structures codes emission from hydrogen, oxygen, and sulfur in shades of blue and green.