NGC

The second is that NGC 346 is taking more time to dissipate its protoplanetary disks because of radiation pressure being expelled from its stars.

Stephan's Quintet represents "a galactic crossroad where past collisions between galaxies have left behind a complex field of debris," which has now been reawakened by the passage of the galaxy, NGC 7318b.

The discovery of NGC 7318b smashing through Stephan's Quintet was observed by a team of more than 60 astronomers and has been published today in Monthly Notices of the Royal Astronomical Society.

The Young Astronomy Photographer of the Year award was won by Daniel Borsari for his image "NGC NGC 1499, A Dusty California".

This image features the California Nebula - also known as NGC 1499 - an emission nebula in the constellation of Perseus.