2MASS J18082002-5104378 B, an ultra metal-poor star located some 1,950 light-years away from Earth, is approximately 13.53 billion years old, making it one of the most ancient stars in our Milky Way Galaxy. This image shows the binary star system 2MASS J18082002-5104378. Image credit: Centre de Données astronomiques de Strasbourg / SIMBAD / DSS2. The Universe’s first stars after the Big Bang would have consisted entirely of elements like hydrogen,...
