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Cygnus Spacecraft Launch to International Space Station Delayed Again

© AFP 2021 / AUBREY GEMIGNANI The United Launch Alliance Atlas V rocket with Orbital ATK’s Cygnus spacecraft onboard is seen shortly after Launch Complex 41 Vertical Integration Facility on December 2, 2015
The United Launch Alliance Atlas V rocket with Orbital ATK’s Cygnus spacecraft onboard is seen shortly after Launch Complex 41 Vertical Integration Facility on December 2, 2015 - Sputnik International
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The launch of a Cygnus cargo spacecraft carrying new supplies to the International Space Station has been postponed again.

International Space Station - Sputnik International
Cygnus Spacecraft Launch to International Space Station Set For March 24 - ULA
WASHINGTON (Sputnik) — The launch of the OA-7 Cygnus cargo spacecraft carrying new supplies to the International Space Station (ISS) has been postponed again, the United Launch Alliance (ULA) has announced.

"While completing testing for a ground support hydraulic condition discovered during prelaunch testing, a different issue with a booster hydraulic line was observed. The team is developing a plan to resolve the issue and a new launch date will be determined. The Atlas V and Cygnus spacecraft remain secure," ULA said in a Wednesday statement.

Earlier this week, ULA said that the launch was planned for March 27. Previously, it was set for March 24, after having been postponed from the original scheduled date of March 19.

One of the previous delays was caused by booster hydraulic issues discovered during pre-launch testing. Last week, ULA said that its team needed additional time to replace and retest a first stage hudraulic component.

The Cygnus spacecraft is supposed to launch atop a United Launch Alliance Atlas V rocket from the Cape Canaveral Air Force Station in the US state of Florida.

Russian-made RD-180 rocket engines power the first stage of the two-stage Atlas V, which is supplied by ULA, a joint venture between defense and aerospace contractors Lockheed Martin and Boeing.

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