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SpaceX Crew Dragon spacecraft launch to the International Space Station. Photo: Jonathan Newton /The Washington Post via Getty Images

The second operational SpaceX spacecraft carrying four astronauts for a six-month mission arrived at the International Space Station on Saturday morning.

The big picture: The Crew Dragon spacecraft "Endeavour," which launched on a Falcon 9 rocket Friday, docked autonomously with the ISS at 5:22 a.m. ET, joining another Crew Dragon spacecraft, "Resilience."

  • This is the first time that SpaceX is reusing both a rocket and a capsule, which were used to launch the Crew-1 mission that arrived in November.
  • This is the third time SpaceX has launched people to space for NASA, Axios' Miriam Kramer notes.
A tweet previously embedded here has been deleted or was tweeted from an account that has been suspended or deleted.

Details: The spacecraft aligned itself and moved directly to dock in one of the station's ports.

  • The Crew-2 mission consists of NASA astronauts Shane Kimbrough and Megan McArthur, Japanese astronaut Akihiko Hoshide and the European Space Agency's Thomas Pesquet.
  • The total number of astronauts in the International Space Station is now 11, but four of the crew members are scheduled to fly back to Earth next week.

The Crew-2 mission will focus on research with "small models of human organs containing multiple cell types that behave much the same as they do in the body," which NASA says will hopefully help develop drugs and vaccines, CNN reports.

Go deeper

Miriam Kramer, author of Space
Apr 23, 2021 - Science

SpaceX launches crew of four to the International Space Station

The rocket launches from Florida. Photo: NASA TV

Four astronauts took flight to the International Space Station aboard a SpaceX Crew Dragon early Friday morning.

The big picture: This marks the third time SpaceX has launched people to space for NASA, helping the space agency end its reliance on Russia's Soyuz spacecraft and rocket for trips to the space station.

GOP Rep. Gonzalez retires in face of Trump-backed primary

Ohio Rep. Anthony Gonzalez (R) Photographer: Stefani Reynolds/Bloomberg via Getty Images

Ohio Rep. Anthony Gonzalez (R) announced his retirement on Thursday, declining to run against a Trump-backed primary challenger in 2022.

Why it matters: Gonzalez has suffered politically since siding with House Democrats to impeach the 45th president after the Capitol riot.

Swing voters oppose Texas abortion law

Protesters at a rally at the Texas State Capitol. Photo: Jordan Vonderhaar/Getty Images

All 10 swing voters in Axios’ latest focus groups — including those who described themselves as "pro-life" — said they oppose Texas' new anti-abortion law.

Why it matters: If their responses reflect larger patterns in U.S. society, this could hurt Republicans with women and independents in next year's midterm elections. The swing voters cited overreach, invasion of privacy and concerns about frivolous lawsuits jamming up the courts.