Most planetary systems contain worlds larger than Earth but smaller than Neptune, and the low-density planets around one ...

Compared to our 4.5-billion-year-old sun, ​​the 20-million-year-old V1298 Tau is a stellar baby, making it ideal for ...

Scientists weighed newborn planets for the first time, revealing puffy worlds that will shrink into super-Earths and ...

One of the biggest recent surprises in astronomy is the discovery that most stars like the Sun harbor a planet ...

It's estimated there may be trillions of rogue planets wandering through the Milky Way, unbound to any star. Since detecting ...

Astronomers have confirmed a Saturn-size world drifting alone in deep space roughly 10,000 light-years from Earth, a ...