Over the coming weeks we will feature, in no particular order, each of the final 16 selected images and winners will be announced by Royal Museums Greenwich on 17 September. The winning images are to be showcased at the Royal Observatory Greenwich in an exhibition opening 18 September.
New research by Harvard astronomers shows that half of the farthest known stars in our galaxy might have been ripped from another galaxy: the Sagittarius dwarf.
Our fourth nomination from the prestigious Insight Astronomy Photographer of the Year competition, an annual celebration of the most beautiful and spectacular visions of the cosmos by astrophotographers worldwide. Now in its seventh year, the 2015 competition received 2700 spectacular entries from over 60 countries and the winners will be announced 17 September.
Dwarf planet Pluto will receive its first robotic emissary from Earth in the form of NASA’s New Horizons spacecraft on 14 July. Since this enigmatic world is also at opposition on 6 July, here’s our guide to finding Pluto with large backyard telescopes.