Uncategorized
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Exercise steps up as depression buster
Aerobic exercise, done alone or in a group, eases depression almost as well as a common antidepressant does.
- Planetary Science
Martian rovers survive storm
Three months after being stymied by a planet-wide dust storm, NASA's twin Mars rovers are back in action.
- Humans
It’s About Time
What’s a year? Why do we measure it in days and weeks? How do calendars differ? What’s the earliest known date? (Hint: It’s the year Egyptians invented the calendar.) Learn answers to these and other timely questions at Calendars from the Sky, a site developed in part with support from the National Institute for Standards […]
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