The nearest known alien worlds begin just over four light-years away around Proxima Centauri, the closest star to our Sun. Its system contains three reported planets, including Proxima b, a roughly ...

A breathtaking cosmic voyage exploring the most bizarre, extreme, and spectacular alien worlds discovered across our galaxy, ...

Researchers want to explore the idea that microscopic particles shed by alien civilizations have accumulated on the lunar ...

NASA’s Roman Space Telescope could revolutionize the search for alien worlds by discovering around 100,000 exoplanets—far more than all previous missions combined. It will look deep into unexplored ...

NASA officials have announced that new observations of 20 exoplanets beyond our solar system will help unlock the secrets of ...

California’s Vasquez Rocks have stood in for alien worlds for decades. A NASA satellite image reveals the famous landscape ...

When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of biology because they are often produced by living microbes. However, ...