Mysterious Comet SWAN R2: New Interstellar Visitor or Oort Cloud Wanderer?
Discovery of Comet C/2025 R2 (SWAN) Comet C/2025 R2 (SWAN) was spotted in early September 2025 in a rather unconventional way – by searching for faint glows in SOHO satellite images. The SOHO spacecraft’s SWAN instrument scans the entire sky in ultraviolet light, primarily
