The size of a planet is a major factor that determines if life can gain a foothold on it, even if it's in the habitable zone ...

Exoplanets—planets that orbit stars beyond our solar system—have transformed our understanding of the universe. Since the first confirmed discovery in the 1990s, more than 5,000 have been identified, ...

Dreams of finding a sort of Earth 2.0 motivate much of the thinking around the search for exoplanets. But there is more to ...

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A new study modeled the chemistry of TOI-270 d, an exoplanet between Earth and Neptune in size, finding evidence that it could be a giant rocky planet shrouded in a thick, hot atmosphere. TOI-270 d is ...

Just decades after the first exoplanets were identified, our database of the distant worlds—monitored by the NASA Exoplanet Science Institute—has breached a new threshold. Now, astronomers have ...

"This makes TOI-2267 the first binary system known to host transiting planets around both of its stars." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

Kepler-62f (also known by its Kepler Object of Interest designation KOI-701.04) is a super-Earth exoplanet orbiting within the habitable zone of the star Kepler-62, the outermost of five such planets ...

Planet TOI-421b lacks the haze of other exoplanets, which means we're able to get a surprisingly clear understanding of it. The James Webb Space Telescope just zoomed in on the atmosphere of a planet ...

"A key step toward ultimately understanding which planets can stay alive, keep their water, and perhaps even, one day, host life as we know it." When you purchase through links on our site, we may ...

Astronomers have detected over 5,800 confirmed exoplanets. One extreme class is ultra-hot Jupiters, of particular interest because they can provide a unique window into planetary atmospheric dynamics.