This Earth Day, join us in person and online to learn how NASA studies the ocean from space. Explore the complex connections between sea, air, land, and climate through a mix of in-person and virtual activities, talks, and trivia. Discover more about NASA’s Earth and ocean-observing fleet during an in-person and virtual Earth Day celebration on April 18 and 19. NASA For nearly five decades, the agency and its partners have collected data across all of the world’s ocean basins with satellites, airplane-mounted instruments, and space shuttles and stations. On April 11, NASA released the first im…