Astronomers have discovered an alien world that defies every planetary rule with its massive size, low density, and tilted ...

What can theoretical models teach scientists about the formation and evolution of exoplanets? This is what a recent funding ...

Space scientists look back on three decades of exoplanet discoveries—from rows of massive ‘super-Earths‘ to worlds with ...

Exoplanets are planets outside Earth's solar system. In 1995, a gas giant named 51 Pegasi b, which orbits a star similar to Earth's sun, etched its name in history as the first exoplanet ever ...

NASA launched an exoplanet-hunting experiment Oct. 1 despite the government shutdown. After the mission's end on Oct. 2, news ...

Even astronomers who study peculiar outer space objects have their favorites. Here are some interstellar bodies that have won ...