NASA is set to announce the major discovery of a new planet by the Kepler Space Telescope tomorrow (July 23) at noon EDT (5 p.m. BST), and you can watch it live below.
Today we know that Earth is just one of hundreds of billions of planets in our galaxy, itself just one of hundreds of billions of galaxies.
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"Today, and thousands of discoveries later, astronomers are on the cusp of finding something people have dreamed about for thousands of years – another Earth," NASA teased in a statement. The live stream below will reveal the discovery tomorrow at a news conference at noon EDT (5 p.m. BST).