The discovery of the "hot Jupiter" exoplanet 51 Pegasi b on Oct. 6, 1995 changed the course of astronomical history.

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 ...

An instrument is set to improve the detection and direct imaging of planets outside our solar system by harnessing the power ...

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NASA has confirmed 6,000 exoplanets, marking a major milestone in humanity’s quest to understand other worlds. From gas giants hugging their stars to planets covered in lava or clouds of gemstones, ...

Scientists got a never-before-seen look at an area around a large exoplanet 625 light-years away where moons could ...

An exoplanet orbiting a dwarf star 124 light-years from Earth made headlines around the world in April 2025. Researchers at the University of Cambridge reported that planet K2-18b could be a marine ...

It might sound hard to believe, but NASA's exoplanet count just reached 6,000 — and that's with only about 30 years of hunting worlds beyond our solar system. In fact, only three years ago, that ...

Scientists have found thousands of planets outside our solar system, called exoplanets, throughout the galaxy. This artist’s ...

From lava worlds to gas giants, NASA says the variety of these worlds is staggering—and that signs of a further 8,000 distant ...