SpaceX's Dragon capsule docks at ISS on 30th cargo mission for NASA

a spacecraft capsule is docked upside down to the upward docking port of a chrome space station module.
SpaceX's CRS-30 Dragon cargo spacecraft docked to the ISS at 7:19 EDT, March 23, 2024. (Image credit: NASA)

After an orbital chase lasting a day and a half, SpaceX's Dragon cargo spacecraft rendezvoused and docked with the International Space Station (ISS) early Saturday morning (March 23).

The uncrewed spacecraft launched on Thursday afternoon (March 21) from Cape Canaveral Space Force Station in Florida. 

Rendezvous occurred Saturday morning. Monitored by NASA astronauts Laurel O'Hara and Mike Barratt from inside the ISS Cupola module, the spacecraft autonomously docked to the zenith port of the station's Harmony module at 7:19 a.m. EDT (1119 GMT), soaring 262 miles (421 kilometers) above the south Atlantic Ocean, just west of Africa.

Related: International Space Station: Everything you need to know about the orbital laboratory

CRS-30 cargo breakdown:

Crew Supplies: 1,201 pounds / 545 kilograms

Science investigations: 2,502 pounds / 1,135 kg

Spacewalk equipment: 198 pounds / 90 kg

Vehicle hardware: 915 pounds / 415 kg

Computer resources: 55 pounds / 26 kg

This is SpaceX's 30th commercial resupply mission to the ISS, which explains the flight's name — CRS-30. With today's arrival, Dragon delivered 6,263 pounds (2,841 kilograms) of fresh food, research experiments and station maintenance hardware for the station's current crew. Dragon's trunk also contains a new spare pump for the space station's external thermal loop system.

NASA's SpaceX CRS-30 cargo breakdown. (Image credit: NASA)

Dragon will remain docked to the ISS for about five weeks on CRS-30 before returning to Earth. 

Unlike Northrup Grumman's Cygnus cargo vehicle, or the Roscosmos Progress spacecraft, SpaceX's Cargo Dragon is capable of atmospheric reentry and recovery after a parachuted splashdown in the ocean. NASA utilizes this ability to return experiments from the station, as well as discarded waste.

Join our Space Forums to keep talking space on the latest missions, night sky and more! And if you have a news tip, correction or comment, let us know at:

Josh Dinner
Writer, Content Manager

Josh Dinner is's Content Manager. He is a writer and photographer with a passion for science and space exploration, and has been working the space beat since 2016. Josh has covered the evolution of NASA's commercial spaceflight partnerships, from early Dragon and Cygnus cargo missions to the ongoing development and launches of crewed missions from the Space Coast, as well as NASA science missions and more. He also enjoys building 1:144 scale models of rockets and human-flown spacecraft. Find some of Josh's launch photography on Instagram and his website, and follow him on Twitter, where he mostly posts in haiku.