A collision of two galaxies has left a merged star system with an unusual appearance as well as bizarre internal motions. Messier 64 has a spectacular dark band of absorbing dust in front of the galaxy's bright nucleus, giving rise to its nicknames of the
Images taken in infrared and visible light by NASA's Hubble Space Telescope recount a vivid story of the turbulent birthing process of massive stars. The pictures show that powerful radiation and high-speed material unleashed by "hefty" adult stars residing in the hub of the 30 Doradus Nebula are triggering a new burst of star birth in the surrounding suburbs.
The radiation from 2,500 young stars excites the atoms causing them to emit radiation themselves. This view of the very center of the Rosette Nebula spans 15 light years across. Credit: NASA/ESA Hubble Space Telescope