Planets, like those in our solar system, form in a bottom-up process where small bits of rock and ice clump together and grow larger over time. But the heftier the planet, the harder it is to explain ...

Dying stars may be wiping out nearby giant planets as they expand into red giants. Astronomers found that these close-in planets become increasingly rare around more evolved stars, suggesting many ...

29 Cygni b is a massive object weighing around 15 times as much as Jupiter and with 150 times the heavy elements of Earth. So, is it a planet or a star? Astronomers used the James Webb Space Telescope ...

Astronomers now estimate there is at least one planet for every star in our galaxy. These worlds, called exoplanets, are planets that orbit stars outside our solar system. But new research from ...

Astronomers have unleashed a powerful new AI tool called RAVEN to comb through data from NASA’s TESS mission—and it’s paying off in a big way. By analyzing millions of stars, the system has confirmed ...

Scientists find strong evidence that magnetic fields shape the weather on distant exoplanets for the first time.

NASA’s Roman Telescope could reveal 100,000 hidden worlds and rewrite what we know about planets across the Milky Way. NASA’s Nancy Grace Roman Space Telescope is expected to dramatically expand ...