Astronomy Picture of the Day

Explanation: N44 is one of the largest and most intricate nebulae in this part of the universe. Located in our galactic neighbour the Large Magellanic Cloud, N44 houses numerous massive bright stars, lengthy lanes of dark dust, and vast clouds of hydrogen gas that glows red. The red colour of the N44 emission nebula comes from pervasive hydrogen atoms re-acquiring electrons that were knocked away by energetic light from massive stars. The central stars also appear to have somehow created the huge superbubble visible in the lower left. N44, pictured above, spans about 1,000 light years and lies about 170,000 light years distant.