The solar system’s largest planet shines bright as the Moon wanes and Saturn’s moons dance in the sky this week.

In the Solar System, there’s only one other gas giant: Saturn, currently visible to the west in the early evening. Leaving aside its glorious rings, Saturn has another claim to fame: this gas giant ...

Mars may have once possessed an ocean at least as large as Earth's Arctic Ocean, a new study suggests. Previous research ...

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 ...

Today: Winter is the best season for finding bright stars. And if you only want to set aside a few minutes, 10 p.m. tonight ...

We can thank the Moon for predictable weather, ocean currents and the circulation of important nutrients. The Moon also helps stabilize the Earth's tilt. Take away the Moon, and the Earth would go ...

When Earth was a molten inferno, water may have been locked safely underground rather than lost to space. Researchers discovered that bridgmanite deep in the mantle can store far more water at high ...

Bright full moons, dazzling meteor shower displays and remarkable total eclipses will give stargazers plenty of reasons to look to the sky in 2026. The new year kicks off with the full wolf moon on ...

The new year opens with its usual dazzling display of bright stars and constellations, this year featuring “guest star” Jupiter. The panoply of stars will all be assembled in the east to southeast by ...