Jupiter, the largest planet in the solar system, was 2 to 2.5 times bigger in its earlier life, according to new research. Jupiter, the largest planet orbiting the sun, used to be much bigger and ...

On Feb. 6, 2027, an annular solar eclipse — a “ring of fire” — will darken the skies across southern South America and West ...

Jupiter is already the biggest planet by far in our solar system, but new research suggests it was somehow once even larger than it is now. Twice as large, in fact. To put that into context, those ...

Many astronomical events, such as meteor showers, run by calendrical timings as well. But our moon and the other planets move ...

A rare Ring of Fire solar eclipse will light up the skies on 17th February 2026. Discover when it happens, where it will be ...

On Jan. 5, 2038, a rare “ring of fire” annular solar eclipse will be seen along a path from Cuba to Egypt, with 97% of the ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A partial solar ...

Our 2026 skywatching guide includes a total solar eclipse, a "blood moon" and a festive supermoon. Here are the dates you need to know. When you purchase through links on our site, we may earn an ...

From dazzling meteor showers to dramatic eclipses visible across parts of the world, the year ahead offers many opportunities to witness life-changing celestial events. Here are the astronomical ...

On Saturday (Jan. 10), for example, we will see three satellites on one side of Jupiter (going outward from the planet: Ganymede, Io and Europa ), while the fourth ( Callisto) remains all by itself on ...

The night sky has a habit of slipping into the background during quieter years. Fewer headline events pass overhead, and ...

The moon and sun share top billing in 2026. Kicking off the year’s cosmic wonders is the moon, drawing the first astronauts to visit in more than 50 years as well as a caravan of robotic lunar landers ...