SPACE.COM Antares launches Cygnus on ISS cargo mission


  • A Northrop Grumman Antares rocket successfully launched a Cygnus spacecraft on 17 April 2019 carrying 3.5 metric tons of cargo bound for the International Space Station (ISS).
  • The Antares lifted off from the Mid-Atlantic Regional Spaceport.
  • The Cygnus is scheduled to be captured by the ISS’s robotic arm.
  • It will remain at the station for about 90 days.


  • The Spacecraft carried about 7,600 pounds of supplies and scientific experiments to the station.
  • The mice aboard Cygnus are at the core of one such study, which aims to test the effectiveness of an anti-tetanus vaccine.
  • The rodents are split into two groups of 20; half will receive the vaccine in space and the other 20 will not receive the vaccine.
  • Scientists will study the mice to see how the animals responded to the vaccine once they are back on Earth.
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