Six new Canadians take their oath of citizenship while harnessed on the CN Tower's “Edgewalk” 356 metres (1,168 feet) above Toronto, Ontario, Canada in a still image from video October 9, 2018. (Photo by CN Tower/Handout via Reuters)

Gorgeous galaxies and stunning stars make up this selection of pictures from the shortlisted entries for this year’s Insight Astronomy Photographer of the Year award. The winners will be announced on 15 September, and an exhibition of the winning images will be will be displayed in a free exhibition at the Royal Observatory Greenwich’s Astronomy Centre from 17 September. Here: “Seven Magic Points”. The rusty red swirls of the circular, iron sculpture Seven Magic Points in Brattebergan, Norway mirror the rippling aurora above. (Photo by Rune Engebø/Royal Observatory Greenwich’s Astronomy Photographer of the Year 2016/National Maritime Museum)

Sharafkhaneh port and lake Urmia. Masoud Ghadiri (Iran). The summer Milky Way is very prominent in this photo. On the galaxy zone, Saturn is located besides the Lagoon nebula. On the right of the horizon, you can see the extreme light pollution of Urmia, which is caused by ever-increasing city development. (Photo by Masoud Ghadiri/National Maritime Museum)

In this February 27, 1984, file photo, singer Placido Domingo laughs with members of the Rockettes at New York's Radio City Music Hall. The singer and dancers met while rehearsing for Channel Thirteen's “Gala of Stars 1984”. Nine women in the opera world have told The Associated Press that they were sexually harassed by Domingo, one of the most celebrated and powerful men in opera. The women say the encounters took place over three decades, at venues that included opera companies where he held top managerial positions. (Photo by Steve Friedman/AP Photo/File)

Belarusian beauty designers attend an annual national contest in Minsk, Belarus on November 7, 2019. (Photo by Vasily Fedosenko/Reuters)

A reveler in costume laughs during the “Cordao do Boitata” street party in Rio de Janeiro, Brazil, Sunday, February 24, 2019, one of the many parades before the official start of Carnival on March 1. (Photo by Leo Correa/AP Photo)

A motorcycle-taxi driver takes a nap while leaning on his bike along a street in Bangkok, Thailand on February 17, 2019. (Photo by Jewel Samad/AFP Photo)

English singer and songwriter Dua Lipa performs during the Brit Awards 2021 at the O2 Arena, London, Tuesday, May 11, 2021. (Photo by Ian West/PA Wire via AP Photo)