People familiar with the matter say OpenAI has discussed potential participation in its upcoming IPO with Citigroup and JP Morgan. Those banks could join Goldman Sachs and Morgan Stanley on the deal, but discussions are non-binding and do not guarantee involvement; other investment banks may also participate.

China returned the 10th batch of space-station science samples aboard Shenzhou-22 on April 29. Early on April 30, part of the payload arrived in Beijing and was handed to scientists. The shipment covers 23 experiments—9 life-science, 12 materials and 2 combustion—weighing about 41 kg. Life-science samples, including artificial embryos and brain organoids, were transferred to the Chinese Academy of Sciences Center for Space Application Engineering and Technology after inspection for follow-up research. Remaining materials and combustion samples will be delivered to Beijing with the Shenzhou-22 reentry capsule.

US Secretary of Defense Hegseth said America First means engaging with realism and clearly defending the country's core national interests.