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💫 Welcome to your new home, NASAWebb. On Jan. 24, the James Webb Space Telescope arrived at its final destination about 1 million miles, or 1.5 million kilometers, from Earth. For its entire mission, Webb will orbit at what’s called Lagrange point 2 (L2), a point in space that balances the gravitational pull of Earth and the Sun. Orbiting the Sun in line with Earth at L2 keeps the telescope's instruments super cold and allows it to observe the sky at any moment. At 2 p.m. EST (19:00 UTC), teams on Earth commanded Webb to fire its onboard thrusters for nearly five minutes to complete the final course correction burn. This allowed the spacecraft to park itself into L2. Now that Webb’s primary mirror segments and secondary mirrors have been deployed, engineers will begin the sophisticated three-month process of aligning the telescope’s optics to nearly microscopic precision, with some movements as small as 10 nanometers — only one-ten thousandth the width of a human hair. From now unt...

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