NASA said it was scrapping Tuesday's plans to launch Artemis, the US return to the moon after five decades, noting concerns about a tropical storm headed to Florida.
Tropical Storm Ian is expected to hit Florida, home to the Kennedy Space Center, next week, according to the US National Hurricane Center.
Apart from weather and technical challenges like a fuel leak, Artemis I, the uncrewed test flight, signals a major turning point for NASA's post-Apollo human spaceflight programme, after decades focused on low-Earth orbit with space shuttles and the International Space Station.
Artemis will be headed to the moon, as a stepping stone for a future flight to Mars.
Named for the goddess who was Apollo's twin sister in ancient Greek mythology, Artemis aims to return astronauts to the moon's surface as early as 2025, though many experts believe that time frame will likely slip.
An explosive-laden car rammed into a Pakistani military convoy on Saturday in a town near the Afghan border, killing at least 13 soldiers, sources said.
Radiation levels in the Gulf region remain normal after the 12-day Israel-Iran conflict severely damaged several nuclear facilities in Iran, Director General Rafael Mariano Grossi of the International Atomic Energy Agency (IAEA) said.
Rwanda and Democratic Republic of Congo signed a US-brokered peace agreement on Friday, raising hopes for an end to fighting that has killed thousands and displaced hundreds of thousands more this year.
The US Supreme Court on the last day of rulings for its current term gave Donald Trump his latest in a series of victories at the nation's top judicial body, one that may make it easier for him to implement contentious elements of his sweeping agenda as he tests the limits of presidential power.
Polish President Andrzej Duda arrived in Kyiv on Saturday for a meeting with Ukrainian President Volodymyr Zelenskyy, Duda's office said, as Kyiv aims to build support among allies at a critical juncture in its grinding war with Russia.