Researchers uncover how Mars affects Earth’s orbit, offering new insight into the planetary forces behind ice ages.

Most people think they know exactly where “down” is. It’s the direction your feet point. But that familiar sense of ...

At extreme pressures and temperatures, water becomes superionic — a solid that behaves partly like a liquid and conducts ...

Which way is ‘down’ has a different answer depending on where you are on Earth, in the solar system, in our galaxy and beyond ...

I/ATLAS is a newly detected interstellar object that entered the solar system from outside our stellar neighborhood, ...

Pluto sits far out in the Solar System, small and dim, moving at a pace that barely fits human timelines. It was found in ...

Scientists have identified an unexpected way to study the hidden space weather of distant stars by observing strange, ...

Scheduled to launch in early 2026, NASA's Artemis 2 is part of the bold 21st-century vision for returning astronauts to the ...

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

Jupiter currently shines as a brilliant silvery "star" in the constellation Gemini the Twins, low in the east-northeast sky ...

In the vast calm of the solar system, planetary orbits often appear orderly, stable, and insulated from the broader mechanics of the galaxy. Earth circles the Sun with regularity. The outer planets ...

So far, humanity has yet to find its first "exomoon"—a moon orbiting a planet outside of the solar system. But that hasn't ...