How we sharpened the James Webb telescope's vision from a million kilometers away

After Christmas dinner in 2021, our family was glued to the television, watching the nail-biting launch of NASA's US$10 ...

How we sharpened the James Webb telescope’s vision from a million kilometres away

It was put on Webb to diagnose and measure any blur in its images. Even nanometres of distortion in Webb’s 18 hexagonal ...
Canadian Medical Association Journal

Riedel thyroiditis mimicking a locally invasive malignant tumour in a 55-year-old man

Key points A 55-year-old man with a left-sided goiter and local compression symptoms presented to our endocrinology clinic. He did not have dysphagia, dyspnea, or hoarseness. All laboratory results, ...
Arizona Daily Star

What is Article 5? A look at NATO's common defense pledge that stands in the way of Ukraine's admission

VILNIUS, Lithuania — Ukrainian President Volodymyr Zelenskyy may have gotten support and vague assurances from NATO leaders in Vilnius this week, but he ultimately returns home without a clear ...