The James Webb Telescope discovers its first exoplanet

The James Webb Telescope discovers its first exoplanet

The James Webb Space Telescope has discovered its first exoplanet. The existence of the exoplanet “LHS 475” had already been indicated, and now it has been confirmed for the first time using the telescope, the American space agency Nasa said. “LHS 475” is almost exactly the same diameter as our Earth and is about 41 light years away. It is still unclear whether the exoplanet has an atmosphere similar to our Earth’s atmosphere.

For a long time, astronomers only knew about the planets orbiting our sun. The first exoplanets – celestial bodies that typically orbit a star outside our solar system – weren’t confirmed until the early 1990s. NASA experts believe there are hundreds of billions of exoplanets in our galaxy, the Milky Way.

The “James Webb” telescope was jointly built by the European (ESA), American (Nasa) and Canadian (CSA) space agencies and was launched at the end of 2021 aboard an Ariane launcher from the European spaceport of Kourou in French . Guyana – after there had previously been cost explosions and repeated postponements. In the summer of 2022, the first images from the telescope were released and provided the deepest and most detailed information about space yet.

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