A member of the Knights Guard cleans the ice during the Vegas Golden Knights' game against the Colorado Avalanche at T-Mobile Arena on April 28, 2021 in Las Vegas, Nevada. The Golden Knights defeated the Avalanche 5-2. (Photo by Ethan Miller/Getty Images via AFP Photo)

Italy's Charlene Guignard (L) and Marco Fabbri react to their score after the ice dance rhythm dance competition during the ISU World Figure Skating Championships 2023 in Saitama, on March 24, 2023. (Photo by Kazuhiro Nogi/AFP Photo)

A folk artist gives a fire pot performance at the foot of Ulan Hada volcano group on November 16, 2024 in Ulanqab, Inner Mongolia Autonomous Region of China. A tourism festival themed on ice and snow opened in Ulanqab on November 16, which will last for five months. (Photo by Wang Zheng/VCG via Getty Images)

Madison Chock and Evan Bates, of the United States, compete in the ice dance's rhythm dance segment at the ISU Grand Prix Finals of Figure Skating, Friday, December 6, 2024, in Grenoble, France. (Photo by Laurent Cipriani/AP Photo)

A soldier helps another with her ear protection at the Terningmoen Camp in Elverum, Norway on March 23, 2017. Soldiers demonstrate their skills and tactics during a contract drill as they train to become part of the world's first all-female special forces unit, the Jegertroppen or “hunter troops”. (Photo by Carolina Reid/NBC News)

Penitentes, or nieves penitentes (Spanish for “penitent-shaped snows”), are a snow formation found at high altitudes. They take the form of tall thin blades of hardened snow or ice, closely spaced with the blades oriented towards the general direction of the sun.

A suspected Vietcong is kicked by a Vietnamese soldier holding a rifle as another soldier attempts to tie his hands on October 22, 1965. The prisoner was one of 15 captured October 21 near Xom Chua when government troops raided in the plain of reeds area. Troops killed 43 suspected Vietcong and seized some arms. (Photo by Richard Merron/AP Photo)

Russian soldiers rehearse ahead of a forthcoming parade on Red Square in Moscow on November 5, 2017 The event will take place on November 7, marking the 76 th anniversary of a 1941 parade, when Red Army soldiers marched past the Kremlin walls towards the front line to fight Nazi Germany troops during World War Two. (Photo by Mladen Antonov/AFP Photo)