UCLA astrophysicists have now measured the shape of the orbits of exoplanets—from the size of Jupiter down to the size of ...

In 2025, astronomers sharpened their view of the planetary system around Proxima Centauri — the sun's closest stellar ...

The first exoplanet ever discovered in 1995 was what we now call a "hot Jupiter," a planet as massive as Jupiter with an ...

EVANSTON, Ill. — Except for the fact that we call it home, for centuries astronomers didn’t have any particular reason to believe that our solar system was anything special in the universe. But, ...

Astronomers have captured a rare and remarkably close view of a giant planet circling a pair of tightly bound suns, offering ...

Astronomers hunting for planets orbiting nearby stars similar to the Sun are looking for signs of rocky, Earth-like planets in a “habitable” zone, where conditions such as temperature and liquid water ...

During the solar spectacle, the orbits of Jupiter, Mercury, Uranus, Mars, Neptune and Saturn will bring the six planets to the same side of the sun. The planets won't form an actual straight line in ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit before shoving four of the solar system's planets onto a different course. When ...

The giant planets weren't always where we find them today. Jupiter, Saturn, Uranus and Neptune formed in a more compact ...

The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have dubbed ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Is there an unseen planet — a "planet X" or "Planet Nine" — ...

Astronomers photographed a baby planet, WISPIT 2b, during its formation process within a dusty ring around its star system.