We measure the extremely long distances between things in space by light years. A light year is the distance that light travels in one Earth year. Light travels at about 300,000 kilometres per second.

Discover when the next full moon will rise in July 2025, why it's called the Hungry Ghost Moon, and what celestial events to watch for.

It's officially summer, and with that comes the first full moon of the season. July's full moon -- known as the Buck Moon or ...

Amazon's massive Prime Day 2025 sale includes budget movie box sets, new steelbooks, complete TV series, and B2G1 free 4K Blu ...

During the course of a 13-second exposure, the International Space Station makes a trail of light in the sky as the station ...

"Theories involving substantial formation of stars prior to or together with the black hole formation and growth are very ...

The buck moon is the first full moon in July and will be one of the most clearly visible lunar events of the year.

The search for dark matter requires all the best models, theories, and ideas we can throw at it. A new paper by Julia Monika Koulen, Stefano Profumo, and Nolan Smyth from the University of California ...

July's full "Buck Moon" will be at its fullest on Thursday, July 10, and will be best seen at moonrise. It is the farthest ...

On July 7, skywatchers will see a bright moon near red supergiant star Antares in the southeastern sky after sunset. It's one ...

OUR much-loved astrologer Meg sadly died in 2023 but her column will be kept alive by her friend and protégé . Read on to see ...

To get a glimpse of the “Swift Planet,” EarthSky suggests waiting for the sun to set before looking west for the planet during twilight time. Nearly a week after Fourth of July fireworks illuminate ...