A powerful new observatory is the best hope yet for finding the elusive Planet 9, a large planet that some scientists say is ...

According to new simulations, many, even most, planets get ejected from their star early in their history Star Trek ...

Pluto isn’t the only dwarf planet in our solar system's outer reaches. Now is an ideal time to look for the egg-shaped Haumea ...

We've known for over 30 years that there are other stellar systems in our galaxy, but we don't have any idea how many there ...

Astronomers have discovered two new exoplanets that are similar to other worlds found in the Milky Way, but unlike any in our ...

Astronomers have confirmed the existence of four rocky planets orbiting Barnard’s Star, our nearest solitary stellar neighbor ...

2025 — A combination of cosmic processes shapes the formation of one of the most common types of planets outside of our solar system, according to a new ... Mar. 13, 2025 — Water once existed ...

"It’s a really exciting find — Barnard’s Star is our cosmic neighbor, and yet we know so little about it," Ritvik Basant, an ...

Scientists are using an array of instruments to detect other planets, some of which may harbor life—and others that most ...

2025 — A combination of cosmic processes shapes the formation of one of the most common types of planets outside of our solar system, according to a new ... TOI-1453: Sub-Neptune in System of ...

We often focus on space observatories that peer beyond Earth. But the vast majority of satellites stare right back at us.

Astronomers finally spotted evidence of auroras on Neptune after years of searching, raising new questions about the planet.