Astronomers have just made one of the most exciting discoveries in recent years, a new planet the size of Earth, located just 40 light years away, with early signs that it could support life. This incredible find puts us one step closer to answering one of humanity’s oldest questions: Are we alone in the universe? The newly detected world orbits within the habitable zone of its star, a region where temperatures could allow liquid water to exist on the surface. Water is one of the most important