“That planet shouldn’t be there.” Today we have confirmed about 4,000 exoplanets. The majority were discovered by the Kepler space telescope, launched in 2009. Kepler’s mission was to see ...

Marenfeld under CC BY 4.0 For decades, astronomers have probed the space around Barnard’s Star in search of exoplanets. As our cosmic neighbor—the nearest single-star system to our sun—it ...

Of the more than 5,000 exoplanets that have been detected since, more than 4,000 of them were discovered through the transit method. Most of those observations were made by the exoplanet-hunting ...

Exoplanets are the celestial bodies orbiting stars other than our Sun. Their small size makes them difficult to detect from Earth, particularly as they appear much dimmer than their parent stars ...