Intricate mission to de-ice a space telescope is go: Euclid's 'eye' is clear

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100 minutes of heating to melt a frozen heart... 1.5 million kilometers away from Earth

Boffins at the European Space Agency are very pleased with themselves following confirmation that the de-icing process they devised for Euclid's optics has"performed significantly better than hoped.". While the thickness of the ice was measured in nanometers, scientists could detect its impact through the drop in light observed from distant galaxies.

The team wasn't even sure which of the mirrors was causing the problem but reckoned there was a good chance it was the first mirror they planned to heat. "We were very careful with our timings, ensuring we had constant contact between the spacecraft and our ground station in Malargüe, Argentina, so we could be ready to react in real time if there were any anomalies."

 

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