Above is an image taken by NASA's Lunar Reconnaissance Orbiter (LOR) of a "mystery" surfboard-shaped object orbiting the Moon. Quashing the conspiracy theories, NASA has identified the UFO. In fact, from their perspective, it never was unidentified.
The object is Danuri, the Korea Aerospace Research Institute's lunar orbiter. Launched in 2022, Danuri is South Korea's first Moon mission. According to the Planetary Society, the probe is studying the Moon's surface and "represents the first step in South Korea's Moon exploration plans, which aim for a robotic landing mission and more."
From NASA:
Due to the fast relative velocities between the two spacecraft (about 7,200 miles, or 11,500 kilometers, per hour), the LRO operations team at NASA's Goddard Space Flight Center in Greenbelt, Maryland, needed exquisite timing in pointing LROC to the right place at the right time to catch a glimpse of Danuri.