It's taken roughly five months, but a massive iceberg has separated from Antarctica's Pine Island Glacier. According to NASA's Earth Observatory, the estimated size of this iceberg, named B-31, is around 660 square kilometres (33 km long by 20 km wide) – a city-sized block of ice that has slowly migrated away from the continent, and is now floating out to sea. Take a look at some massive icebergs afloat in the oceans. Photo: File photo of an iceberg floating near a harbour in the town of Kulusuk, east Greenland August 1, 2009. (Photo by Bob Strong/Reuters)

Handout grab taken from YouTube of Commander Chris Hadfield who has said goodbye to life on the International Space Station by making a cover version of David Bowie's Space Oddity. Issue date: Monday May 13, 2013. (Photo by Commander Chris Hadfield/YouTube/PA Wire)

Darth Mykolaiovych Vader, who is dressed as the “Star Wars” character Darth Vader, poses for a picture as he dries his mask and helmet with a hairdryer in the bathroom of his apartments in Odessa, Ukraine, December 2, 2015. Darth Vader was bent on galactic domination, but his Ukrainian namesake enjoys more mundane pursuits: local politics, walking the family dog and a spot of embroidery. The Ukrainian citizen, who has changed his name to Darth Mykolaiovych Vader, ran for the post of local mayor in October, his political backers dressed as Stormtroopers. In his trademark black outfit, he is a regular sight around Odessa, a major port city on southern Ukraine's Black Sea coast. (Photo by Valentyn Ogirenko/Reuters)

American DJ, model and YouTube personality Chantel Jeffries is seen on April 01, 2023 in Los Angeles, California. (Photo by Rachpoot/Bauer-Griffin/GC Images)

The Bolenberg chapel sits on a rise overlooking vineyards where leaves change colors to mark a change in the season in Orschwihr in the Alsace region of France, October 12, 2015. (Photo by Jacky Naegelen/Reuters)

An Extinction Rebellion protestor holds up a sign saying “You Can Change Climate Change” in St Martin's Lane in London, United Kingdom on August 23, 2021. (Photo by James Veysey/Rex Features/Shutterstock)

American YouTuber, and daughter of fashion designer Mossimo Giannulli and actress Lori Loughlin Olivia Jade raises a glass of wine while enjoying her summer in the first decade of July 2022. (Photo by oliviajade/Instagram)

Spanish singer-songwriter Rosalia attends 2023 Billboard Women In Music at YouTube Theater on March 01, 2023 in Inglewood, California. (Photo by Chelsea Lauren/Rex Features/Shutterstock)