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A century of exploring the endless final frontier
Editor in chief Nancy Shute discusses a century of astronomy and scientists' search for worlds beyond our own
- Physics
With Steven Weinberg’s death, physics loses a titan
The Nobel laureate advanced the theory of particles and forces, and wrote insightfully for a wider public.
- Health & Medicine
What experts know so far about COVID-19 boosters for immunocompromised people
Some immunocompromised people remain at risk for severe COVID-19 despite being vaccinated. Studies hint that an additional vaccine dose might help.
- Space
How do scientists calculate the age of a star?
There are a few different methods to determine the age of a star, but none are perfect.
