C/2024 E1 (Wierzchos) brightened significantly ahead of its close approach to the sun.

The other two known interstellar comets did not offer such an opportunity.

Every year in early January, Earth reaches the closest point in its orbit to the Sun, a moment astronomers call perihelion.

Earthshine is sunlight that bounces off Earth, travels to the Moon, and then reflects back to our eyes. The Moon essentially ...

A blistering coronal mass ejection from the Sun raced to Earth in just 25 hours, triggering a severe G4 geomagnetic storm and ...

Some regions of the continent have enough ice to push up sea levels by 15 metres if they all melt, but researchers don’t yet fully understand the consequences ...

Along with bonus stargazing targets!

A research team has successfully imaged a nova in high resolution—and the images suggest that the nova was not a single, impulsive explosion. A nova is an astronomical phenomenon that occurs in a ...

Sweeping winds of vaporized metals have been found in a massive cloud that dimmed the light of a star for nearly nine months.

Known as dinosaur stars for both their primeval nature and their immense size, Population III stars existed only when the ...

Data from the Kepler project has confirmed a new world that fulfills the telescope's goal of locating Earth-sized planets ...

Solar Orbiter has captured the clearest evidence yet that a solar flare grows through a cascading “magnetic avalanche.” Small, weak magnetic disturbances rapidly multiplied, triggering stronger and ...