Anna Skinner is a Newsweek senior reporter based in Indianapolis. Her focus is reporting on the climate, environment and weather but she also reports on other topics for the National News Team.

A supplement contextualizes key advances in light microscopy over 400 years, while the Tara expedition sets sail to explore oceanic ecosystems at the microscopic level. Microscopes were also in ...

The biggest stories of the day delivered to your inbox.

After hours: 7:59:53 p.m. EST ...