'Yellowballs' offer new insights into star formation

A serendipitous discovery by citizen scientists has provided a unique new window into the diverse environments that produce stars and star clusters, revealing the presence of "stellar nurseries" before infant stars emerge ...

What motivates the green volunteer?

Countless numbers of volunteers throughout the world are dedicated to nature: via citizen science or through activities like planting trees or organizing nature excursions. But who are these people and why do they take action? ...

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