Boeing Starliner Orbital Flight Test 2: Live updates

Weather forecast: 60% go for launch

Meteorologists with the U.S. Space Force’s 45th Weather Squadron are now predicting a 60% chance of favorable weather for liftoff on Tuesday.

“The primary weather concerns for launch day are the cumulus cloud rule, lightning rule and thick cloud rule violations during the instantaneous launch window,” NASA officials wrote in an update.

Forecasting launch day’s weather

Will bad weather interfere with Tuesday’s launch? Maybe, or the rocket could blast off before the storms roll in. Read more.

OFT-2 in pictures

While we wait out the launch delay, check out the full story of OFT-2 in photos with this gallery.

Starliner heads back inside

With launch delayed to no earlier than Tuesday (Aug. 3) and bad weather expected to hit the Space Coast, the Starliner capsule and its Atlas V rocket headed off the launch pad for shelter. Read more here.

New launch date announced

NASA officials announced during a news conference that Starliner will now target launch on Tuesday (Aug. 3) at 1:20 p.m. EDT (1720 GMT). If that launch date holds, the capsule will arrive at the International Space Station on Wednesday (Aug. 4). Read more.

Starliner launch delayed

NASA and Boeing have delayed Friday’s planned launch of the uncrewed Starliner OFT-2 mission and are establishing a new launch date, according to a NASA statement. The delay comes after Russia’s Nauka module briefly tilted the International Space Station by firing its thrusters in an unplanned maneuver that you can read about here.

We’ll update with a new launch date as soon as possible.

“Success in spaceflight is achieved by millions of elements coming together and working in perfect harmony,” Boeing officials wrote in a statement about the delay. “That’s the nature of our business, and that requires patience. We stand ready to launch the CST-100 Starliner when the time is right, as we support NASA on the International Space Station.”

Starliner and Atlas V roll out

ULA’s 172-foot (52 meters) Atlas V rocket, with Starliner secured on top, left the Vertical Integration Facility today (July 29) and rolled out to its launch pad, Space Launch Complex 41 at Cape Canaveral Space Force Station in Florida. Read our rollout story here.

L-1 Day!

What’s the big deal with this launch? Don’t worry, we’ve got you covered. Check out a deep dive on Boeing’s bumpy ride to the launchpad and brush up on every aspect of the mission, from what’s on board to what comes next.

Starliner spends one more night at the VIF

Boeing just shared a new photo of its Starliner spacecraft inside the Vertical Integration Facility at Cape Canaveral Space Force Station as the Atlas V rocket awaits its delayed rollout to the launchpad, now scheduled for 8 a.m. EDT (1200 GMT) tomorrow (Thursday, July 29). 

“Storms rolled in, so Starliner didnt roll out,” Boeing tweeted today. “#Starliner and #AtlasV are safe in the @ulalaunch Vertical Integration Facility and ready to roll tomorrow morning.”

Atlas V rocket rollout delayed

The United Launch Alliance (ULA) and Boeing had originally planned to transport the Atlas V rocket for the OFT-2 mission to the launchpad this morning, but the rollout has been postponed until Thursday (July 29), beginning at 8 a.m. EDT (1200 GMT). 

“The delay is due to an internet service provider outage that could not be resolved before the onset of predicted weather exceeding operational constraints. The OFT-2 launch, planned for Friday, July 30, at 2:53 p.m. EDT, remains on track,” NASA officials wrote in a blog post. 

Speaking of weather, currently the forecast is looking only 40% favorable for Starliner’s planned launch on Saturday. “At this time, the probability of violation remains at 60%, with the primary concerns being the Cumulus Cloud, Surface Electric Fields, and Lightning Rules,” the U.S. Space Force’s 45th Weather Squadron said in the latest weather update. 

Boeing’s plan for the flight

Catch up on the plan for Starliner’s second uncrewed launch with this video from Boeing.

Starliner OFT-2 prelaunch briefing starts now!

NASA and Boeing are about to begin today’s prelaunch news conference for the Starliner OFT-2 mission. The briefing begins at 1 p.m. EDT (1700 GMT), and you can watch that live here on Space.com, courtesy of NASA TV. 

Launch weather update

The launch weather forecast for Friday’s planned launch of the Starliner OFT-2 mission currently predicts only a 40% chance of acceptable conditions for liftoff, according to an update from the U.S. Space Force’s Space Launch Delta 45 Weather Squadron. 

NASA and Boeing officials will hold a prelaunch news conference for OFT-2 tomorrow (July 27) at 1 p.m. EDT (1700 GMT). You can watch that live here on Space.com, courtesy of NASA TV. 

The CST-100 Starliner capsule has passed its flight readiness review (FRR) for the upcoming liftoff, which will kick off the uncrewed Orbital Flight Test 2 (OFT-2) mission to the station, NASA and Boeing representatives announced today (July 22). Read the full story here.

Over the weekend, engineers mated the Starliner spacecraft to its Atlas V rocket, marking a key milestone ahead of the mission’s launch next week. See the photos here.