The years fly by on first exoplanet to be confirmed by James Webb Space Telescope
NASA's James Webb Space Telescope has confirmed its first exoplanet: a rocky, hot world with a diameter 99 percent the size of Earth that completes an orbit around its star in just two days.
NASA scientists involved with the project said they're impressed with Webb's observations of the small, rocky 475 b, and NASA Astrophysics division director Mark Clampin said Webb's first observations of a terrestrial exoplanet bode well for future exploration. Whether there's life, or habitable conditions, on planet b is far from clear, though. LHS 475 b is closer to its star than any planet in our solar system, and observations point to its surface temperature being a few hundred degrees warmer than Earth.
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