Incredible new images of the sun's surface provide an unprecedented view of sunspots and other solar activity.

Earth and space mingle in stunning ways for the 2025 Milky Way Photographer of the Year contest. From the “geological ...

The four cardinal signs represent trailblazing energy, as the signs that start every season. Here’s what to know about them.

Titan is a strange world, at -300 degrees Fahrenheit, and shrouded in a jaundiced smog. Similar to Earth, the atmosphere is ...

Data for the study came from NASA’s Magellan mission, which orbited Venus in the 1990s. Though decades old, its radar ...

You’d have thought it would be pretty simple to say when summer starts - but it’s a bit more complicated than that.

Discover the fascinating names of full moons, from Flower Moon to Blood Moon, and learn their meanings, origins, and the ...

On Tuesday (May 6), Saturn has its equinox – an event that happens only once every 15 years on Earth. As a result, Saturn’s rings will become "utterly invisible" and won't be seen in all their glory ...

Here is a collection of 50+ Earth Day wishes, messages, quotes, slogans, and images you can use to inspire awareness and spread positivity. Celebrate the Earth not just today, but every day.

Every six months, the equinox splits Earth's day almost in half ... Photograph by MASSOUD HOSSAINI / AFP, Getty Images View of the sun behind the Temple of the Seven Dolls in the Mayan ...