Women hold a demonstration on Backwater Bridge during a protest against plans to pass the Dakota Access pipeline near the Standing Rock Indian Reservation, near Cannon Ball, North Dakota, U.S. November 27, 2016. (Photo by Stephanie Keith/Reuters)

Performers pose during the 2022 ICC Women's Cricket World Cup match between Australia and West Indies at Basin Reserve on March 15, 2022 in Wellington, New Zealand. (Photo by Hagen Hopkins-ICC/ICC via Getty Images)

A fire show lit up Mayfair on May 10, 2022 to celebrate The Ivy Asia arriving at its newest central London location. Reservations have now opened for the new dining venue in North Audley Street ahead of its launch on May 31. (Photo by Handout via PA Wire Press Association)

Play-fighting cheetah siblings at the Zimanga game reserve in South Africa in the second decade of November 2024 were spotted by Gavin Bickerton-Jones, an amateur photographer, who said: “It is a bit scary at first being so close, but also a privilege for them to let you share their space”. (Photo by Gavin Bickerton-Jones/Solent News)

A visitor holds an Israeli-made rifle during the 8th International Land and Naval Defense system exhibition, in New Delhi, India, on February 6, 2014. (Photo by Anindito Mukherjee/Reuters)

“This Way Up”. Photographic section portfolio, first prize. A Chinook CH-47 weapon systems operator prepares his aircraft during a training exercise in June 2018. (Photo bu SAC Ed Wright/RAF)

The mineral pyrite, or iron pyrite, also known as fool's gold, is an iron sulfide with the formula FeS2. This mineral's metallic luster and pale brass-yellow hue give it a superficial resemblance to gold, hence the well-known nickname of fool's gold. The color has also led to the nicknames brass, brazzle, and Brazil, primarily used to refer to pyrite found in coal.
In crystallography, the cubic (or isometric) crystal system is a crystal system where the unit cell is in the shape of a cube. This is one of the most common and simplest shapes found in crystals and minerals.

“The Boeing X-45 unmanned combat air vehicle is a concept demonstrator for a next generation of completely autonomous military aircraft, developed by Boeing's Phantom Works. Manufactured by Boeing Integrated Defense Systems, the X-45 was a part of DARPA's J-UCAS project”. – Wikipedia

Photo: Two X-45A Unmanned Combat Air Vehicles (UCAV) are shown to members of the news media July 11, 2002 at Edwards Air Force Base, California. The X-45A, developed by The Defense Advanced Research Projects Agency and the Boeing Company, is the first unmanned system designed from inception for combat missions. (Photo by David McNew/Getty Images)