NGC 474 is an elliptical galaxy in the constellation Pisces. This large galaxy is known to possess tidal tails, although their origins remain unknown. These tidal tails may be related to debris left over from absorbing numerous small galaxies in the past billion years. Or the shells may be like ripples in a pond, where the ongoing collision with the spiral galaxy just above NGC 474 is causing density waves to ripple though it.
Young Stars in the Rho Ophiuchi Cloud complex -- some 300 emerging and newly formed stars whose average age is estimated to be a mere 300,000 years (extremely young compared to the Sun's age of 5 billion years)
Stellar Nursery in Doradus - This massive, young stellar grouping, called is only a few million years old and resides in the 30 Doradus Nebula, a turbulent star-birth region in the Large Magellanic Cloud, a satellite galaxy of the Milky Way. Image: N