Euclid Reaches L2, Shares its First Test Image

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Euclid Reaches L2, Shares its First Test Image - by briankoberlein

For astronomers, the only thing better than new data is more new data. And we seem to be in a golden age of data gathering. We’ve gushed over the latest images from the James Webb Space Telescope and Hubble continues to make observations, but several new space telescopes are lesser known, such as Gaia, TESS, and Swift. And now a new space telescope enters the game, known as Euclid. Euclid is an infrared telescope launched last month by the European Space Agency .

Euclid is now located at the Lagrange point known as L2, which is a gravitational equilibrium point on the shadow side of Earth about 1.5 million kilometers away. L2 is useful because it provides a gravitationally stable location protected from the heat of the Earth and the Sun. It’s a popular location for telescopes, currently also used by Gaia and JWST. Past telescopes such as WMAP and Planck have used the site, and it will be used for future missions such as the Nancy Grace Roman telescope.

 

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