In 1995, a pair of scientists discovered a planet outside our solar system orbiting a solar-type star. Since that finding—which won the scientists a portion of the 2019 Nobel Prize in ...

For generations, artists and science-fiction writers have imagined alien landscapes beneath twin sunsets. The image became iconic in popular culture long before astronomers confirmed that planets ...

There are few ideas in science that capture the imagination quite like the search for extraterrestrial life. From Mars missions and exoplanet surveys to SETI's decades-long hunt for signals, ...