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Syrian refugees watch health workers visiting a refugee camp in Lebanon in October to help contain a cholera outbreak. More than half the country’s population is still displaced. Bilal Hussein/AP

Friday essay: how the West betrayed Syria

More than half a million people have died in Syria’s war with half the population displaced. The suffering will continue until there is a reckoning with Assad and his allies.
An unlucky star is torn apart by the strong gravity of a black hole, leading to the launching of a relativistic jet. Carl Knox – OzGrav, ARC Centre of Excellence for Gravitational Wave Discovery, Swinburne University of Technology

Astronomers witness the dying flare of a star torn apart by a black hole halfway across the Universe

When a black hole tears apart a star, it feeds on the debris and launches a powerful jet.