Yazılar

SpaceX Readies Polaris Dawn Crew for Daring Spacewalk Mission Amid Uncertain Weather Conditions

/in /tarafından

SpaceX is preparing for another attempt to launch Polaris Dawn, a high-risk mission sending four civilians into space for a historic spacewalk within Earth’s radiation belts. The mission, initially delayed by technical and weather issues in August, is now slated to launch from Kennedy Space Center, Florida, as early as 3:38 a.m. ET on Tuesday. Should weather conditions prevent the launch, other windows are available at 5:23 a.m. ET and 7:09 a.m. ET the same day, with further opportunities on Wednesday morning.

Forecasts remain uncertain, with a 60% chance of unfavorable conditions, while mission controllers are also monitoring splashdown site weather for the crew’s planned return after their five-day space journey. Despite the risk, mission commander Jared Isaacman expressed optimism, noting improved conditions compared to previous weeks.

Isaacman, who is funding the mission, is joined by Scott Poteet, a former US Air Force pilot, and SpaceX engineers Anna Menon and Sarah Gillis. This flight marks the first time a civilian crew will conduct extravehicular activities, scheduled for the third day of the mission.

Polaris Dawn will venture into the Van Allen radiation belts, making it the first human mission to reach that far into space since the Apollo program ended in 1972. Given the reliance on oxygen supplies for the spacewalk, timing is crucial to ensure the mission’s on-time return.

In addition to Polaris Dawn, SpaceX is also preparing for NASA’s Europa Clipper mission, set for an October launch to explore Jupiter’s icy moon.

 

SpaceX Postpones Historic Private Spacewalk Mission Due to Weather

/in , /tarafından

SpaceX has delayed its ambitious Polaris Dawn mission, which aimed to achieve the first-ever spacewalk by private citizens. Originally set to launch from NASA’s space center in Florida early Wednesday, the mission was postponed due to an “unfavorable weather forecast” in the planned splashdown areas. The delay follows a previous cancellation on Tuesday caused by a helium leak affecting the rocket’s connection line.

Polaris Dawn, spearheaded by fintech billionaire Jared Isaacman, was intended to feature an all-civilian crew, including Isaacman, retired US Air Force pilot Scott Poteet, and SpaceX engineers Anna Menon and Sarah Gillis. Isaacman, who previously financed SpaceX’s Inspiration4 mission in 2021, has not disclosed the total investment for this venture.

The mission will use a SpaceX Dragon capsule launched by a Falcon 9 rocket, targeting altitudes up to 1,400 km (870 miles) — the highest ever for a crewed mission since NASA’s Apollo program. The crew is scheduled to spend six days in space, with a planned spacewalk on the third day, involving Isaacman and Gillis exiting the spacecraft in upgraded SpaceX spacesuits.

During the mission, they plan to conduct experiments, including testing communications with Starlink satellites and observing the Van Allen radiation belt. The exact timing of the rescheduled launch remains unclear.