Black holes hide in our cosmic backyard

Monster black holes sometimes lurk behind gas and dust, hiding from the gaze of most telescopes. But they give themselves away when material they feed on emits high-energy X-rays that NASA's NuSTAR (Nuclear Spectroscopic ...

The hidden artist of the Soviet space programme

When Galina Balashova designed her first space habitation module for Soviet cosmonauts, she drew a landscape on its interior wall, something that could remind them of home.

Choked by smog, Beijing creates new environmental police

Officials in Beijing have announced a new environmental police squad to root out illegal burning in the city, the latest government response to the widespread public anger over China's persistent problems with smog.