Theory Nexus

In the vast expanse of the universe, the search for life beyond our own planet continues to intrigue scientists and captivate the public alike. The discovery of exoplanets – planets that orbit stars other than our own sun – has significantly expanded our understanding of the cosmos and raised the tantalizing possibility that life may exist elsewhere in the universe. Exoplanets come in myriad shapes and sizes, and can be found in a range of locations within their star systems. Some orbit close to their stars, where temperatures are scorching hot and the environment is inhospitable to life as we know it. Others are located at much greater distances, where the temperature conditions may be more moderate and water – a key ingredient for life – could potentially exist. Thanks to technological advancements, astronomers have detected thousands of exoplanets in recent years. Using a range of methods, including transit photometry and radial velocity measurements, scientists have been able to id...