Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more.After their weeklong journey turned into a monthslong stay on the International Space Station, two Boeing Starliner astronauts will soon be united with the spacecraft that will eventually bring them home.The SpaceX Crew Dragon capsule, chosen by NASA to carry astronauts Suni Williams and Butch Wilmore back to Earth after their Starliner spacecraft was deemed too risky for crew, is approaching the space station. The vehicle, on a mission called Crew-9, is expected to dock at about 5:30 p.m. ET Sunday.On board the SpaceX vehicle are NASA astronaut Nick Hague and Russian cosmonaut Aleksandr Gorbunov. Alongside them are two empty seats, saved for Williams and Wilmore to occupy when the group returns to Earth next year.Hague and Gorbunov launched aboard the Crew Dragon Saturday afternoon from Cape Canaveral Space Force Station in Florida. Though they reached their intended orbit without a hitch, SpaceX later revealed that the second stage, or upper portion, of the Falcon 9 rocket that powered the first part of their journey experienced an issue after it broke away from the capsule.“After today’s successful launch of Crew-9, Falcon 9’s second stage was disposed in the ocean as planned, but experienced an off-nominal deorbit burn,” the company shared in a post on X, the social media platform formerly known as Twitter. “As a result, the second stage safely landed in the ocean, but outside of the targeted area.”SpaceX indicated it would pause flights using Falcon 9 — the world’s most frequently launched rocket — as it explored the anomaly. “We will resume launching after we better understand root cause,” the company said in the X post.CNN has reached out to the Federal Aviation Administration for comment.Meanwhile, Crew-9’s SpaceX Crew Dragon capsule has spent about one day traveling t …
