For now, the images capture a brief, dynamic moment in a star's death march, offering a rare peek at how its debris scatters through space, seeding future generations of stars and planets.
Tkachuk expresses regret over Trump joke
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Nicknamed the father of environmental justice, Robert Bullard argues that researchers in the field have more reason than ever to back up their work with action.
Or the US could enter a period of lower growth, if restricting immigration takes the wind out of the economy.