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Strange 'puffy' alien world breaks every rule for how planets should behave
A low-density, puffy planet orbiting relatively far from a young star in a nearly perpendicular orbit. What's going on?
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'Moon-forming' disk spotted around massive planet gives scientists peek into solar system's past
The James Webb Telescope measured a potential moon-forming disk encircling an exoplanet, NASA recently announced, inviting researchers to observe and study moon formation as it happens, while ...
Exoplanets are planets outside Earth's solar system. In 1995, a gas giant named 51 Pegasi b, which orbits a star similar to Earth's sun, etched its name in history as the first exoplanet ever ...
Thirty years ago this week, two Swiss astronomers announced that they had spotted the first known planet orbiting a Sun-like ...
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 ...
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