NASA, which recently postponed the Crew-7 flight to August 26, announced the start of the mission. NASA announced that the Crew-7 crew will travel aboard the Crew Dragon spacecraft before arriving at the International Space Station (ISS).
NASA made a statement about the Crew-7 mission
“Crew-7 is a shining example of both the power of American ingenuity and what we can achieve when we work together,” NASA Administrator Bill Nelson said in a statement. On the station, the crew will conduct more than 200 science experiments and technology demonstrations to prepare for missions to the Moon, Mars and beyond while benefiting humanity on Earth. “By partnering with countries around the world, NASA recruits the best scientific minds to carry out our bold missions, and it’s clear that we can do more and learn more when we work together.” He stated:

The launch, originally planned for August 25, was postponed for further analysis of the Crew Dragon spacecraft. After a delay of about a day, it was able to continue on Saturday.
The crew is scheduled to arrive at the ISS and dock with the station’s Harmony module at 8:39 a.m. ET (5:39 a.m. PT) on Sunday, August 27. Crew-7 astronauts will open the hatch between Crew Dragon and Crew Dragon.
In addition to NASA astronauts Stephen Bowen, Woody Hoburg and Frank Rubio, the Crew-7 mission includes crew from different countries such as UAE astronaut Sultan Alneyadi and Roscosmos cosmonauts Sergey Prokopyev, Dmitri Petelin and Andrey Fedyaev.
Crew-7 astronauts will remain on the ISS for approximately six months, during which time they will undertake duties such as inspecting incoming cargo missions and being present when the special Axiom-3 mission arrives. However, some scientific research will be conducted, including a space sleep experiment, taking microbial samples from outside the space station, and investigating human health in space.