2014 has been another fantastic year for the Astronomy Photographer of the Year competition, with more entries than ever before being submitted from all around the world.
Now open, our annual free exhibition showcases these incredible images of the sky, ranging from within our solar system to far into deep space.
Solar features, eclipses, aurorae, nebulae, star trails and more can be found in the images on display.
We visited three of our entrants on location to understand the story behind their pictures.
rmg.co.uk/astrophoto
flickr.com/groups/astrophoto
#astrophoto2014
Credit as 'Royal Observatory Greenwich/ Lonelyleap'.
Cast:Royal Observatory Greenwich and LONELYLEAP
Tags:astrophoto, astronomy photography and Royal Observatory