Watch live: SpaceX is about to reattempt a high-altitude flight of its Starship rocket. The last 2 prototypes blew up.

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SpaceX is preparing to rocket its latest Starship prototype tens of thousands of feet into the air on Wednesday.

The challenge is landing it back on the ground — that maneuver has ended in explosion both times the company previously attempted it. This time around, SpaceX founder Elon Musk estimated that the prototype has a 60% chance of a successful landing.

The prototype represents the upper stage of a two-part system: Eventually, a roughly 23-story booster called Super Heavy would heave the Starship spaceship toward orbit. Musk’s long-term vision is for the system to one day fly astronauts to the moon and power hypersonic travel on Earth. He has said he plans to build 1,000 Starships in order to carry people and cargo to Mars.starship sn10 spadre

But first, SpaceX has to figure out how to land the rocket, since that is critical to making the system reusable. Full reusability could help Starship slash the cost of reaching space 1,000-fold.

The newest prototype is called Starship serial No. 10, or SN10. Musk said on Twitter that it would launch Wednesday, and an update to the SpaceX website confirmed that timing.

When that happens, SN10 should roar nearly 33,000 feet above SpaceX’s facilities in Boca Chica, Texas. One by one, it should shut off its engines as it nears the peak of its flight, then flip sideways and plummet back to Earth in a controlled belly flop. As it nears the ground, the rocket should fire its engines once again to flip itself upright in time to slow its descent and touch down gently on the landing pad.

The last two times SpaceX conducted such a flight, the prototypes slammed into their landing pads and exploded. captured the second incident from a camera on top of a building about 6 miles away:


Watch SN10’s launch attempt live on YouTube

SpaceX has said it will begin a live feed of the flight attempt a few minutes before liftoff. We will embed that broadcast below once it’s available. In the meantime, fans of the company are on the ground and streaming their own live video of the launch site.

We recommend starting with NASASpaceflight‘s video stream, given the broadcasters’ knowledge and multiple quality camera views.

They keep track of preparations at the SpaceX facilities that indicate progress toward liftoff — things like clearing the launchpad, activity in the tank farm sitting next to SN10, and loading the rocket with liquid propellant. 

LabPadre offers six unique views of the Starship launch site. Below is the channel’s main 4K-resolution feed.

For a more distant view of the launch site — broadcast from the top of a hotel resort in South Padre Island about 6 miles away — check out SPadre’s 24-hour live feed.

In addition to Wednesday, the Federal Aviation Administration has issued airspace-closure notices for the area from 8 a.m. to 6:30 p.m. CT on Thursday and Friday — backup dates in case weather or technical issues cause SpaceX to scrub the attempt. Likewise, Cameron County has given notice that a nearby road will be closed on those days, which is another prerequisite for launch.

SpaceX faces regulatory hurdles to get Starship to orbit

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SpaceX’s two previous test flights — those of prototypes SN8 and SN9 — were considered successes despite their explosive endings. That’s because they demonstrated that Starship is capable of rocketing to suborbital heights and then controlling its fall.

However, those flights both resulted in FAA investigations, since the agency wanted to determine the cause of the explosions. It turned out that SN8 had fallen victim to low pressure in a propellant tank, which caused the spaceship to fall too fast and slam into its landing pad. An additional issue with that attempt was that SpaceX hadn’t gotten the proper FAA approval, violating its launch license.

This triggered its own investigation, which then held up the SN9 flight. Once that prototype did fly, one of its three Raptor engines failed to relight as the rocket neared the ground.

All those investigations have been closed, an FAA spokesperson told CNN reporter Jackie Wattles. And the launch-license updates for the SN10 flight are approved, according to Washington Post reporter Christian Davenport.

Eventually, SpaceX will want to rocket a Starship into orbit to test its ability to reenter Earth’s atmosphere. That will require a different type of FAA license, but obtaining it means clearing many regulatory hurdles, including a thorough environmental assessment. (The environmental impact statement SpaceX previously completed for Boca Chica launches focused on the company’s smaller rockets, rather than its much larger Starship-Super Heavy system.)

The company is now waiting to start that environmental assessment, but depending on the findings, it’s possible SpaceX may need to conduct a new impact statement, which could take up to three years. Complicating matters is a leaked FAA draft document, obtained by Insider, which revealed that SpaceX plans to dig natural gas wells in Boca Chica to fuel Starships and on-site power plants. Such plans could affect SpaceX’s environmental review process.

SEE ALSO: Elon Musk is trying to create a new city called ‘Starbase’ at SpaceX’s Texas launch site

DON’T MISS: Leaked FAA document reveals SpaceX wants to build its own rocket-fuel power plants in Texas

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NOW WATCH: Elon Musk’s multibillion-dollar Starship rocket could one day take people to the moon and Mars

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