Looking for a sky event this week? Check out our full Sky This Week column. October 5: The Moon, Mars, and M44 The Moon passes 0.2° north of Jupiter at 6 A.M. EDT. But before that, our satellite ...

Moons orbiting rogue planets, worlds flung from their parent star systems into the cold of interstellar space, could maintain liquid water on their surfaces for billions of years if wrapped in a dense ...

Looking for a sky event this week? Check out our full Sky This Week column. October 4: Saturn reaches opposition The Moon ...

The phenomenon of a Full Moon arises when our planet, Earth, is precisely sandwiched between the Sun and the Moon. This ...

So far, humanity has yet to find its first "exomoon"—a moon orbiting a planet outside of the solar system. But that hasn't been for lack of trying. According to a new paper by Thomas Winterhalder of ...

Venus may have once had a moon, but new research suggests the planet’s incredibly slow rotation could have doomed it. Computer simulations showed that instead of gradually drifting away like Earth’s ...

This season, when howling wolves reach their yearly crescendo, the first full moon of 2026 won’t disappoint. It will soar higher in the sky than it will for the rest of year and will loom extra large, ...

Researchers are exploring a theory that the planet “devoured” its moon ...

September brings the autumnal equinox, signaling the official start of fall in the Northern Hemisphere. The harvest moon and planets will appear in California's night sky during the month, along with ...

Astronomers have found a growing number of exoplanets that don’t orbit any stars. They are rogue – or free-floating – worlds in the ocean of space. So could any of them be habitable? Or any of their ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Monday, Dec. 22Crescent moon: look low in the southwest just ...

We have an idea of what the solar system's past was like: It was violent and chaotic. However, we are still studying how violent it was. Current models suggest that at some point after their formation ...