The remotely operated vehicle Jason is lowered in the Pacific Ocean in 2006 to explore an erupting underwater volcano near the Marianas Islands. Sensors left near the site indicated that the volcano, called Northwest
Rota-1, still showed signs of activity. The deep-sea explorer returned to the site in April 2009, where scientists found
that the volcano was still erupting.
(Photo by Tom Bolmer, Woods Hole Oceanographic Institution)