The Red Dragon is bringing a laser printer and other supplies . The printer could allow astronauts to print some data they need . The Dragon is the only spacecraft that can bring back experiment data . 3 new crew members will travel to the ISS this week .
The SpaceX Dragon is bringing a 3-D printer and other supplies . The printer could allow astronauts to print some things they need . The Dragon is the only spacecraft that can bring back experiment samples . 3 new crew members will travel to the ISS this week .