LAUNCH OF SOYUZ MS-25 TO ISS, Mar 23, 2024, Kazakhstan/Earth orbit, 8:36 am ET

Update, March 22: Russia will indeed make the second attempt to launch Soyuz MS-25 tomorrow, March 23, 2024, at 8:36 am EDT with docking on Monday, March 25, at 11:10 am EDT.

The state commission decided to provide the second attempt of the #SoyuzMS25 launch on March 23, at 12.36 UTC. It will dock to the ISS on March 25, at 15:10 UTC. The departure of Soyuz MS-24 with Oleg Novitskiy, Loral O’Hara and Marina Vasilevskaya is now scheduled for April 6. pic.twitter.com/SxfPoNeXjF

— Katya Pavlushchenko (@katlinegrey) March 22, 2024

Update, March 21: The Soyuz MS-25 launch scrubbed at T-20 seconds. NASA later posted that the cause was “low voltage reading in the Soyuz rocket electrical system.”

The next launch opportunity is Saturday, March 21, at 8:26 am ET.  NASA says that if it launches that day, they will need to take the longer trajectory to ISS, docking on Monday.  We will post any updates we get right here.

Updated, March 9

The next Soyuz crew will launch to the International Space Station (ISS) aboard Soyuz MS-25 on March 21, 2024 at 9:21 am Eastern Daylight Time, with docking scheduled for 12:39 pm ET, and hatch opening at 3:10 pm ET. NASA TV coverage is shown in this snip from the NASA TV schedule as of March 9.

The crew is composed of:

• Oleg Novitskiy (Russia)
• Marina Vasilevskaya (Belarus)
• Tracy Dyson (United States)

Vasilevskaya is a spaceflight participant (non-professional astronaut). She and Novitskiy, a member of the Roscosmos cosmonaut corps, will return after 12 days.

NASA astronaut Dyson will remain for a routine 6-month mission, returning in the fall with Russian cosmonauts Oleg Kononenko and Nikolai Chub who are already aboard the ISS and staying for a one-year mission.