NASA delayed the much-anticipated launch of its Space Launch System rocket and uncrewed Orion capsule on Saturday.
The latest: NASA says it won't be able to launch the SLS before late September or October, opting to stand down and fix the issues that scuttled liftoff on Saturday.
NASA's vision of astronauts walking on Mars hinges on first getting them back to the Moon.
Why it matters: NASA is planning to launch its first test flight of its new Moon rocket today, marking one of the agency's first major steps along a decades-long journey to Mars.
NASA's Space Launch System is set to take flight Saturday afternoon on an uncrewed trip to the Moon after the launch was called off Monday.
Why it matters: This mission — called Artemis I — is the first in NASA's bid to return people to the surface Moon for the first time since the end of the Apollo program.
Tropical Storm Danielle strengthened into the season's first hurricane in the Atlantic Ocean on Friday morning but does not currently threaten any land, according to the National Hurricane Center.
Why it matters: The Atlantic hurricane season has so far been unusually quiet, though the federal government and other experts still predict the season will be above average in terms of the number of storms.