Add Yahoo as a preferred source to see more of our stories on Google. Jupiter is already the biggest planet by far in our solar system, but new research suggests it was somehow once even larger than ...

The original version of this story appeared in Quanta Magazine. In October, a Falcon Heavy rocket is scheduled to launch from Cape Canaveral in Florida, carrying NASA’s Europa Clipper mission. The $5 ...

Hot Jupiters, the blisteringly close cousins of our own Jupiter, were once treated as cosmic misfits. Now their orbital patterns are turning into a kind of forensic record, revealing how these giants ...

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

MIAMI — NASA celebrated a key triumph on Tuesday as its $1.1 billion Juno spacecraft successfully slipped into orbit around Jupiter on a mission to probe the origin of the solar system. NASA’s Jet ...

Astro Brief is a podcast collaboration between KSMU, the Missouri Space Grant, and MSU's Department of Physics, Astronomy and ...

CLEVELAND — With so much focus on the total solar eclipse right now, I thought some stellar solar system facts would shake up your universe. Let me take you back to grade school and the solar system ...

WASP-94A b, a hot Jupiter nearly 700 light-years away, builds mineral cloud cover each morning and loses it by evening. This ...

Jupiter, the largest planet in the solar system, has long intrigued scientists seeking to understand its mysterious origins. Recently, researchers uncovered groundbreaking details that shed fresh ...

Washington, D.C. - After 15 years of observation and lots of patience, the world's premier planet-hunting team has finally found a planetary system that reminds them of our own solar system. At a ...