Partial solar eclipse today will take place on September 21, 2025. The event will be visible from New Zealand, Antarctica, ...

Since most people live in the northern hemisphere, the northern lights are more well-known. The auroral oval is always ...

The autumnal equinox arrives Monday, marking the start of the fall season for the Northern Hemisphere and the spring in the Southern Hemisphere.

Saturn will put on a show for professional and backyard astromers alike, and be the brightest and closest it has been to Earth all year. On Sunday, Sept. 21, Saturn will be at opposition, meaning the ...

The bold question-askers at What If consider the consequences of extinguishing the sun.

The next partial solar eclipse is on the same day as September's new moon: Sept. 21. During a solar eclipse, the moon casts a ...

My favorite planet, besides the one I live on, is on the rise in the low eastern sky during evening twilight. It’s Saturn and ...

A new moon is when the moon shares the same celestial longitude as the sun; the two bodies are said to be in conjunction.

This fall Philly may experience 17 days of exceptional moonlight. And do't miss the chimney swifts and the hawks.

A partial solar eclipse happens Sunday in parts of the Southern Hemisphere. Saturn will also appear at its brightest, with ...

The sun is in its most active phase—solar summer—causing auroras and posing real risks to satellites, GPS, and power systems ...

Astronomers have taken a huge leap towards discovering habitable worlds, and the world now eagerly anticipates a rocky planet ...