Core of Omega Centauri globular cluster
Core of Omega Centauri globular cluster (NGC 5139), Hubble Space Telescope image. Globular clusters are spherical clusters of very old stars, about 12 billion years old, that are tightly bound by gravity and orbit a dense central core. This cluster is the largest globular star cluster found orbiting the Milky Way. This image shows an area 50 light years across and containing around 2 million stars. The entire cluster is 150 light years across and contains some 10 million stars. Omega Centauri is around 18, 000 light years from Earth, in the constellation Centaurus. This image, based on optical and infrared light, was obtained in June 2002 with the Advanced Camera for Surveys.
© Nasa/Esa/Hubble Heritage Team (stsci/Aura)/Science Photo Library
Gamma ray burst eruption
Gamma ray burst eruption. Image 5 of 5. Computer artwork of the jet (white) of a gamma ray burst, erupting from a star's surface (across bottom). This is based upon the collapsar theory of GRBs that says GRBs result from the collapse of the core of a massive star. A black hole forms when the core collapses. The spin or magnetic field of the black hole forms jets from material that is being ejected at near the speed of light. The jets are the source of the gamma rays of the GRB, a massive short-lived burst of energy that is 100s of times brighter than an ordinary supernova. For GRB formation, see images R670/148-152. For GRB jets, see images R670/153-154.
© Nasa/Science Photo Library
The Silver Jubilee Aldershot Military Tattoo. An annual event dating back to 1894
The Silver Jubilee Aldershot Military Tattoo. An annual event dating back to 1894. In the 1920s and 1930s, the Aldershot Command Searchlight Tattoo held at the Rushmoor Arena presented displays from all branches of the services, including performances lit by flame torches. At one time the performances attracted crowds of up to 500,000 people. The Tattoo was organised to raise money for military charities. By the end of the 1930s the event was raising around 40,000 annually. Physical Training and Club Swinging. Date: 1935
© Mary Evans Picture Library