Seirios follows D2 into the water for their next adventure. Much like his namesake, Seirios acts as a brilliant source of light in the 'night sky' of the ocean, providing illumination and a wide-angle view from above for its counterpart ROV, D2.
ROV Seirios
Image courtesy of NOAA Ocean Exploration, Exploring Deep-sea Habitats off Puerto Rico and the U.S. Virgin Islands. Download image (jpg, 4.7 MB).

Seirios follows D2 into the water for their next adventure. Much like his namesake, Seirios acts as a brilliant source of light in the "night sky" of the ocean, providing illumination and a wide-angle view from above for its counterpart ROV, D2.