We visit a lot of planets here on WHAT IF, but K2-141b is the most extreme one yet. Are you ready to jump on board this ...

Of the over 5,000 known planets outside our solar system, one of the most dramatic is 55 Cancri e. Affectionately known as the “hell planet,” it orbits so close to its star that it reaches ...

It's so hot that its surface is fully covered by lava oceans. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. You thought Venus was hot? While ...

New observations of the football-shaped exoplanet known as WASP-121b have revealed clues to its atmosphere and weather. Astronomers say it may have metal clouds made up of iron, corundum, and titanium ...

The James Webb Space Telescope (JWST) has spotted a distant exoplanet that should be impossible. The ultrahot super-Earth, named TOI-561 b, is surrounded by a thick atmosphere of hot gas that blankets ...

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(CNN) - NASA has discovered that a year on a sizzling planet known as “hell planet” only lasts about 17.5 hours on Earth. That’s because the planet, formally named Janssen, orbits its host star ...

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New research sheds light on how the "hell planet" got so devilishly hot and how other worlds might become too toasty for life. That rocky world, 55 Cnc e (nicknamed "Janssen"), orbits its star so ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The exoplanet 55 ...

The exoplanet 55 Cancri e goes by several names, but the rocky world located 40 light-years from Earth is most known for its reputation as a “hell planet.” This super-Earth, so named because it’s a ...