Incredibly, astronomers have witnessed an ancient and distant galaxy dying out. Galaxies die when their stars stop forming and by using the Atacama Large Millimeter/submillimeter Array of telescopes in Chile, scientists observed the galaxy called ID2299 emit nearly half of the gas that is used to form the stars. What is so astonishing about this is that the light from ID2299 takes approximately 9 billion years to reach us, so what the astronomers are witnessing is how that galaxy looked when the universe was just 4.5 billion years old (it is currently around 14 billion years old). The amount of gas that the ID2299 galaxy loses each year is equivalent to about 10,000 suns and so far it has lost approximately 46% of its total amount of cold gas. While it has lost nearly half of its cold gas, stars are still forming within it at an incredibly fast rate (hundreds of times faster than the rate that stars form in our Milky Way Galaxy). At the rate that the ID2299 galaxy is using up its remaining gas, astronomers have estimated that it will completely die out in a few tens of millions of years.