The Hubble Space Telescope’s Advanced Camera for Surveys captured this stunning image of the globular cluster NGC 1783, a spectacular collection of suns in the Large Magellanic Cloud some 160,000 light years from Earth with a total mass of about 170,000 times that of the Sun. Based on the colour and brightness of its stars, NGC 1783 is thought to be less than 1.5 billion years old, a relative youngster when it comes to globular clusters. It is thought to have undergone at least two episodes of star formation 50 million to 100 million years apart.
This NASA/ESA Hubble Space Telescope image shows star clusters encircling a galaxy, like bees buzzing around a hive. The hive in question is the edge-on lenticular galaxy NGC 5308, located just under 100 million light-years away in the constellation of Ursa Major. On 9 October 1996, one of NGC 5308’s aging stars exploded as a spectacular Type la supernova.
The latest results from the “Cheshire Cat” group of galaxies 4.6 billion light-years away in the constellation Ursa Major show how manifestations of Einstein’s 100-year-old Theory of General Relativity can lead to new discoveries today. Astronomers have given the group this name because of its resemblance to the smiling feline from Alice’s Adventures in Wonderland.