It's rare for any observatory to directly image a planet beyond our solar system, called an exoplanet, but the powerful James Webb Space Telescope has captured four of them in the stellar system HR ...

A combination of cosmic processes shapes the formation of one of the most common types of planets outside of our solar system ...

NASA’s James Webb Space Telescope has provided a direct look at the multiple gas giant planets within the iconic planetary ...

A combination of cosmic processes shapes the formation of one of the most common types of planets outside of our solar system ...

NASA has confirmed the discovery of a mysterious new planet beyond Neptune, shaking up our understanding of the outer reaches ...

Neptune is an ice giant, composed primarily of hydrogen, helium, and methane, with a hot, dense fluid of icy materials above a small rocky core. Neptune has 14 known moons and at least five main rings ...

Using a newly developed tool to sift through data from the NASA’s Transiting Exoplanet Survey Satellite, a team led by a Penn State astronomer has identified young sub-Neptune planets close to their ...

Astronomers have discovered two exoplanets around TOI-1453, a star about 250 light years away. These two exoplanets, a super-Earth and a sub-Neptune, are common in the galaxy, yet are absent from our ...

A pair of extraordinary space missions that have been headed out of the solar system for almost half a century are getting a ...