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clothes, w Ariane 6 Demo Flight Launch Thread! (ESA Rideshares)

FYI to everyone: there are several fake “ESA Official” YouTube channels running deepfaked Elon crypto scam streams that claim to be “Ariane 6 Launch Stream”.

They’re nothing new, but sharing in case anyone hasn’t seen it before. Those aren’t real streams!

evidences, w Mars rover mission will use pioneering nuclear power source

It’s fine, both of the last two US Rovers are powered off RTGs and several of the deep space probes run off RTGs also. For low Earth orbit and stuff closer to the sun it doesn’t make sense but going further out and especially in a place like Mars where solar panels are prone to being covered in dust an RTG power source makes sense.

mipadaitu,

Exactly, for its intended use, it’s really the best option we have.

ricdeh, w Ariane 6 Demo Flight Launch Thread! (ESA Rideshares)
@ricdeh@lemmy.world avatar
threelonmusketeers,

That was one of the more cinematic stage separations I’ve seen in a while. Beautiful shot from the upper stage camera.

Buzztiger,

Yes beautiful!

clothes,

I’m impressed by the quality of their onboard cameras, without the help of starlink.

threelonmusketeers,

Seems like they might be between ground stations right now. Haven’t seen live video from the upper stage for a few minutes. Telemetry still looks good though.

threelonmusketeers, w Ariane 6 Demo Flight Launch Thread! (ESA Rideshares)

x.com/esa/status/1810792159295180959

The tech-demo phase of Ariane 6 is still in progress but has shown an unexpected result which will only affect the end of the mission.

On the webcast, they stated that the Auxiliary Propulsion Unit (APU) switched off shortly after it it powered up after SECO-2. Without the APU, they have no way to settle the propellants in the tanks, and thus can’t reignite the upper stage for the final burn.

From the live camera feed, it looks as though the upper stage was spinning, so there may have been some loss of control as well.

threelonmusketeers, w Ariane 6 Demo Flight Launch Thread! (ESA Rideshares)

ESA webcast is live! youtube.com/watch?v=B0oFpOJaIYc

mipadaitu, w ESA Selects Four Companies to Develop Reusable Rocket Technology

The best time to start a reusable rocket project is 20 years ago, the second best time is now.

proper, w Juice confirms that Earth is habitable
@proper@lemmy.world avatar

“We are obviously not surprised by these results… it would have been extremely concerning to find out that Earth was not habitable! But they indicate that MAJIS and SWI will work very successfully at Jupiter, where they will help us investigate whether the icy moons could be potential habitats for past or present life.”

threelonmusketeers, (edited ) w Ariane 6 Demo Flight Launch Thread! (ESA Rideshares)

Looks like we have SECO-1 and nominal orbit insertion!

Edit: Webcast commentary scheduled to resume T+52 minutes for a circularization burn and the first set of payload deployments.

Tovervlag, w Ariane 6 Demo Flight Launch Thread! (ESA Rideshares)

Thank you for the info. I’m watching because of you posting this.

threelonmusketeers,

You’re welcome! Glad people find these threads useful!

Buzztiger, w Ariane 6 Demo Flight Launch Thread! (ESA Rideshares)

So launch window start has been shifted by one hour according to my info: 21:00 - 00:00 Amsterdam/Berlin CEST.

threelonmusketeers,

Thanks! Updated the main post.

Zachariah, w First detection of negative ions on the Moon
@Zachariah@lemmy.world avatar

The first ESA instrument to land on the Moon has detected the presence of negative ions on the lunar surface produced through interactions with the solar wind.

The European team working with the Negative Ions at the Lunar Surface (NILS) instrument confirmed the success of this scientific mission that flew to the far side of the Moon aboard the Chang’e-6 spacecraft.

The discovery of a new component of plasma at the surface of the Moon opens a new window for space physics and for human and robotic missions in an era of renewed lunar exploration.

Kangie, w Mars rover mission will use pioneering nuclear power source

Don’t worry too much about it: it’s not the 80s and we’re not the Soviets.

Once it’s in orbit it doesn’t matter and if there’s issues during ascent the source will be hardened to prevent catastrophic release.

Realistically though, just send it up on a falcon 9, the track record on those things is _ astounding_.

nicerdicer, w ESA launches new lunar simulation facility

I wonder why they just couldn’t re-use the Hollywood set from the moon landing in '69. /s

holycrap,

They left it up on the moon, sadly.

Randomgal,

They’ll hire Michael Bay this time and make it all CGI

threelonmusketeers, w Ariane 6 Demo Flight Launch Thread! (ESA Rideshares)

MECO, stage separation, and stage 2 ignition confirmed!

threelonmusketeers, w Ariane 6 Demo Flight Launch Thread! (ESA Rideshares)

Fairing jettison confirmed!

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