Ronald H. Brown spent nearly 800 days at sea in three-and-a-half-year voyage
NOAA’s largest oceanographic research vessel, NOAA Ship Ronald H. Brown, returned to its Charleston, S.C., home port Saturday after a 1,347-day deployment – the longest of any NOAA ship ever.

Scientists on NOAA Ship Ronald H. Brown will launch weather balloons up to eight times a day in the eastern tropical Pacific to help study the current El Niño. (Image credit: NOAA)