The first exoplanet ever discovered in 1995 was what we now call a "hot Jupiter," a planet as massive as Jupiter with an orbital period of just a few days. Today, hot Jupiters are thought to have ...

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

The first planet ever found orbiting another star was detected in 1995, and it belonged to a class now known as a “hot Jupiter.” These exoplanets are comparable in mass to Jupiter but circle their ...

Artist's interpretation of a Jupiter-like exoplanet. AF Lep b is about three times the mass of Jupiter and orbits AF Leporis, a young Sun-like star about 87.5 light-years away. The existence of the ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Jupiter's radius used to be twice its current size, and the planet had a magnetic field 50 times ...

Based on new simulations, scientists believe that giant gas planets across the universe can often collide and merge into even bigger gas plants — behemoths called "super-Jupiters." In the cosmic ...

"Astronomers have been searching for exoplanets that are likely precursors to hot Jupiters for more than two decades, so I was very surprised — and excited — to find one." When you purchase through ...

Twelve new moons orbiting Jupiter have been found — 11 “normal” outer moons, and one that they’re calling an “oddball.” This brings Jupiter’s total number of known moons to a whopping 79 — the most of ...

Want life? Don't get too close to a gas giant planet. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Like huge playground bullies, planets like ...

Orbiting a pulsar, astronomers have found a strange, lemon-shaped exoplanet with winds of helium and pure carbon, denser than ...

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 ...