Exoplanets—planets that orbit stars beyond our solar system—have transformed our understanding of the universe. Since the ...

An international team of astronomers reports the discovery of two new exoplanets, a few times more massive than Earth, orbiting a sun-like star known as HD 35843. The finding was reported in a ...

Of the more than 5,000 exoplanets that have been confirmed so far and many more thousands of candidates, most orbit stars the ...

Why doesn’t our solar system have sub-Neptune exoplanets and what can they teach us about planetary formation and evolution?

Last month, astronomers claimed to have found the strongest evidence ever of alien life on a distant exoplanet named K2-18 b.

What's more, no exoplanets with emission spectra cooler than 275 K (1.85 °C; 35.33 °F) - comparable to Earth - have been observed either. WD stars present a unique opportunity to detect and ...

At a frigid -125 degrees Fahrenheit (-87 degrees Celsius), WD 1856+534 b is the coldest planet ever directly observed, ...

Of the more than 5,000 exoplanets that have been confirmed so far and many more thousands of candidates, most orbit stars the mass of the Sun or lower. The spring night sky, however, offers us ...

Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

Astronomers using the James Webb Space Telescope have directly detected the faint glow of a planet that’s colder than any ...