Topic: Hans Thewissen
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On the horizon: News from the frontiers of science.
The whale's tiny ancestor, how global warming may be hurting plants' carbon-fixing ability, and the mystery of Mars's missing limestone
The whale's tiny ancestor, how global warming may be hurting plants' carbon-fixing ability, and the mystery of Mars's missing limestone
Ash billowing from Pavlof Volcano is not high enough to affect international air travel, but Pavlof is just one of a string of active Alaska volcanoes that sits beneath the flight corridor between the US and Asia.
Doing Good
What happens when ordinary people decide to pay it forward? Extraordinary change...
Scott Budnick works in the dining room as customers arrive for a free meal at the Mathewson Street Friendship Breakfast in Providence, R.I.
Scott Budnick serves breakfast – with a side order of respect – to the homeless
Sunday breakfast at a Providence, R.I., church is more than a free meal. Half the volunteers are homeless themselves: 'It's their [own] breakfast that they're putting on.'
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