Spectacular photos of the sky in Royal Observatory competition
Organisers of a photo competition say they have been overwhelmed after spectacular images of the sky from over 50 countries were submitted.
The record number of entries for the Royal Observatory Greenwich run contest include dramatic views of galaxies millions of light years away to scenery closer to home.
Dr Marek Kukula, public astronomer at the Royal Observatory Greenwich and judge in the competition, said: "The competition grows more and more exciting every year, especially with the sheer volume of entries constantly on the increase. I've been overwhelmed to see how the astrophotography community has come up with new and original ways to produce startling images year on year."
The winning images will be shown at the Observatory from September 18 until February next year and cash prizes will be awarded to the top photographers.
See the selection of images below (click on image to enlarge)
Pictured top is "Aurora and the Milky Way" by Rune Johan Engebo.
The competition, now in its sixth year, is run jointly with BBC's Sky at Night.