“The Magnificent Omega Centauri” by Ignacio Diaz Bobillo
Omega (ω) Centauri, or NGC 5139, is the brightest and largest globular cluster. This showpiece object of the southern sky is captured here in all its glory by astrophotographer Ignacio Diaz Bobillo — winning image of the Stars & Nebulae category in the Insight Astronomy Photographer of the Year competition 2015.