Astronomers have for the first time observed a recurring nova outside of the Milky Way in near-infrared light. The data revealed highly unusual chemical emissions as well as one of the hottest ...

The world’s premier space observatory has spotted a mysterious and huge, free-floating planetary-mass object that’s “just 20 ...

Scientists from UNSW Sydney have located a potential new exoplanet—a planet that orbits a star outside of our solar ...

The disc of plasma surrounding the black hole at the heart of the Milky Way is constantly emitting flares both large and small.

The stars as seen from Earth would have looked dimmer 14 million years ago, as the solar system was in the middle of passing ...

A team of scientists has unveiled the existence of an interstellar tunnel near our solar system, which could be a gateway to ...

If there were such a thing as a photo album of the universe, it might include snapshots of pancake-like disks of gas and dust ...

The puzzle of predicting how three gravitationally bound bodies move in space has challenged mathematicians for centuries, ...

Astronomers have discovered nearly 6,000 planets beyond our own solar system. Here's how — and how we'll find even more.

Astronomers believe they've discovered a spiral structure inside the Oort cloud that surrounds our solar system.

If last year whet your eclipse appetite, get excited for the night skies this month. Mid-March will bring a total lunar ...