Universe scene in the week

Smoke, dust rising from Pavlof volcano, Alaska state, USA on May 18. An astronaut on the International Space Station captures this scene. (Photo: NASA)

The Ring Nebula is shaped like a giant blue eye. Located in the constellation Lyra and about 2,000 light-years from Earth, the Ring Nebula is the material that a dying star releases. (Photo: NASA)

The Milky Way is like a bridge over Bryce Canyon, Utah, USA. (Photo: TWAN)

The two clouds looked like two arms hugging the moon above a castle in Cochem, Germany on May 18. (Photo: TWAN)

The dust, when dense in the nebula IC 2944 in the constellation Centaurus. Many stars have formed in this nebula. It is about 5,900 light-years from Earth and is about 2 light-years across. (Photo: ESO)

A pit shaped like two rings about 480km from the south pole of the moon. (Photo: NASA)