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 ...

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 ...

Earth, and every other planet within our Solar System that we know of, orbits the Sun. Beyond our small region of the universe, planets everywhere orbit their stars. Even tiny changes in these orbits ...

How can planets share the same space with each other, especially planets of different sizes? This is what a recent study ...

The surface of our planet could be even more hospitable to life if the gas giant shifted its orbit. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

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 ...

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 ...