Ocean

• SpaceX's Starship completed its 15th integrated flight test on April 21, achieving full-stack booster catch at Starbase, Texas, and a controlled splashdown in the Indian Ocean for the Super Heavy upper stage. • The mission marked the first successful reentry and splashdown of Starship with active thermal management systems, demonstrating technological readiness for crewed lunar missions planned for 2027. • Flight duration extended to 68 minutes with multiple payload bay experiments conducted, including deployment of prototype satellite constellations and in-space refueling demonstrations.

• Researchers from Woods Hole Oceanographic Institution reported that Atlantic cod and other commercial fish populations have rebounded 34% over the past four years following strict catch quotas and marine protected areas implemented in 2022. • Population surveys conducted across 850,000 square kilometers of Atlantic waters show biomass increases in previously depleted stocks, with detailed findings presented at the American Fisheries Society conference on April 19. • The recovery demonstrates that science-based fisheries management can restore ecosystems within a decade, providing a model for international ocean conservation efforts.

• Indonesian authorities evacuated approximately 200,000 residents from coastal regions across Sumatra and Java on April 10 following a 7.8 magnitude earthquake beneath the Indian Ocean, triggering tsunami warnings across the region. • The Pacific Tsunami Warning Center issued alerts for 17 countries across Southeast Asia and the Indian Ocean basin, with initial sea level measurements showing wave surges of 1.2 to 2.1 meters in Banda Aceh and other coastal communities. • Authorities reported no confirmed fatalities as of press time, with emergency shelters activated and communications being restored in affected areas; officials warned residents not to return to coastal zones until all-clear notices are issued.

The four astronauts are set to touch down on Earth and conclude the 10-day mission after completing moon flybyThe number of human beings who have travelled to the moon and returned safely to Earth will grow to 28 on Friday night when Nasa’s Orion capsule containing four Artemis II astronauts will glide gently to a Pacific Ocean splashdown beneath three giant parachutes.The scheduled 5.07pm PT landing (1.07am BST Saturday) off the coast of San Diego will mark the end of a 10-day lunar odyssey that made the three Americans and one Canadian the first people to travel beyond lower Earth orbit since the final mission of the Apollo program in December 1972. Continue reading...

• Billie Eilish and brother Finneas O'Connell won Song of the Year at the 2026 Grammy Awards held April 5 in Las Vegas for 'Ocean Eyes Reprise'. • Award marks their fifth Song win, beating nominees like Taylor Swift and Kendrick Lamar; Eilish said, 'This one's for the dreamers who never quit.' • Event viewed by 18.7 million, up 12% from 2025, highlighting music awards' TV resurgence.

Researchers warn the high-pressure conditions could disrupt marine life and ecosystems if it continuesSign up for the Breaking News US email to get newsletter alerts in your inboxFor more than a century, shoreline stations operated by the Scripps Institution of Oceanography have measured water temperatures along the California coast. This year, they are flashing a warning sign.Over the last three months, several stations have repeatedly posted record-breaking daily high temperatures – with the La Jolla station registering temperatures a full 10F above historical average at one point last month. Continue reading...

• Ranking Member Zoe Lofgren opened a congressional hearing emphasizing deep-sea exploration's role in US national security, resource management, economic health, and cultural identity. • Advances in deep ocean knowledge support critical national interests amid growing global competition. • Hearing addresses regulatory and scientific challenges in ocean research funding and policy.