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trothamel

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arstechnica.com 3mo ago

What to expect from the fiery, 14-minute return of Artemis II

trothamel
2pts0
images.nasa.gov 3mo ago

Earthset (Artemis II)

trothamel
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www.youtube.com 3mo ago

Watch Artemis II's Closest Approach to the Moon [video]

trothamel
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arstechnica.com 3mo ago

My third Orion launch, but it feels different

trothamel
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www.youtube.com 4mo ago

Ignition: NASA's Plan for the Moon [video]

trothamel
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www.patreon.com 4mo ago

Cooling Datacenters in Space – Doing the Math

trothamel
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twitter.com 5mo ago

Discord Posts "Age Assurance" FAQ

trothamel
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twitter.com 5mo ago

NASA to Save $1.4B by Insourcing

trothamel
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www.corememory.com 5mo ago

The Spacecraft That Wouldn't Die

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arstechnica.com 8mo ago

NASA is kind of a mess: Here are the top priorities for a new administrator

trothamel
4pts0
arstechnica.com 9mo ago

4chan fined $26K for refusing to assess risks under UK Online Safety Act

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trumpcard.gov 10mo ago

Trump Card – Pathway to American Citizenship

trothamel
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www.w3.org 1y ago

Portable Network Graphics (PNG) Specification (Third Edition)

trothamel
3pts0
longislandcwclub.org 1y ago

Learn Morse Code – CW with the Long Island CW Club

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www.cnn.com 1y ago

Musk may be on the brink of achieving the impossible: Salvaging his X investment

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15pts3
twitter.com 2y ago

Starship's Third Flight Test

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arstechnica.com 2y ago

Sorry doubters, Starship had a remarkably successful flight

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www.faa.gov 2y ago

SpaceX Starship/Super Heavy OFT-2 Launch Authorized

trothamel
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www.youtube.com 3y ago

I Sued Facebook Locked Out of Facebook Because of Two-Factor Authentication

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www.wired.com 3y ago

Elon Musk Embraces Twitter's Radical Fact-Checking Experiment

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7pts1
twitter.com 3y ago

Twitter handles engaging in impersonation will be permanently suspended

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www.jpl.nasa.gov 3y ago

Edward Stone retires after 50 years as NASA Voyager’s project scientist

trothamel
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www.governing.com 3y ago

Riding transit takes almost twice as long as driving (2017)

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135pts282
www.theverge.com 4y ago

SpaceX just broke its annual launch record – and it’s only July

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37pts97
www.thetruthaboutcars.com 4y ago

Right-to-Repair causes Subaru to disable telematics in Massachusetts

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179pts68
www.youtube.com 4y ago

Norwalk Havoc Robot League

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twitter.com 4y ago

Firefly Alpha rocket experiences anomaly on first flight

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arstechnica.com 5y ago

New York lawmaker wants to ban police use of armed robots

trothamel
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sebsebmc.github.io 5y ago

Starlink Daily Coverage Estimates

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www.nih.gov 5y ago

Phase 3 clinical trial of investigational vaccine for Covid-19 begins

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2pts0

I suspect that this is the start of a play for SpaceX's orbital datacenter project - if they're really planning on launching as many satellites as they've said (and Starship is going to massively lower the cost of launch), they won't be able to fill them with Grok. So perhaps it's best to become the infrastructure provider to the other AI Labs.

After the accident, Apollo 13 had 4 burns.

The DPS-1 burn which restored the free return trajectory was done using the Apollo guidance computer.

The PC+2 burn which sped up the return from earth was done using the Apollo guidance computer.

The MCC-5 mid-course correction burn was done by hand.

The MCC-7 mid-course correction burn was done by hand, but used the Apollo guidance computer to integrate the accelerometer to let everyone know when the burn was done.

(All the burns on Apollo 8 were computer controlled. I'd assume Gemini 7 and 12 were hand flown, though I don't know for sure.)

Starship V3 2 months ago

So, that's generally not something local governments do in the US. They do things like increasing taxes on data centers, denying water rights, electric interconnection rights, etc. (At least, all of this has been threatened against data centers.)

Starship V3 2 months ago

SpaceX's launch capacity is an order of magnitude larger that all four of those put together.

Starship V3 2 months ago

It's putting AI processing out of the reach of hostile local, state, and international governments. Does it need to be a cover?

That was a great article.

Adding to it - Apollo 13 was a mission where 3 men should have died, but somehow didn't. If it had happened while the LM was on the moon, you would have had the CSM lose power, and then two men on the moon would have had no way to return home.

(And for the shuttle design mission - my understanding is it was likely the ability to do a HEXAGON-style film return mission in a single orbit, before the Soviets knew what was happeneing.)

Lunar Flyby 4 months ago

This is about to change.

New NASA administrator Isaacman has redone the Artemis program. The changes were announced at the Ignition event a few weeks ago:

https://www.nasa.gov/ignition/

If you read one thing, read the sides on building the moon base:

https://www.nasa.gov/wp-content/uploads/2026/03/2-building-t...

The goals it to fly often - adding a SLS launch to 2027 and a second launch to 2028. This drops the cost-per-launch, which is mostly fixed. It redoes SLS to make it less expensive and more capable. It moves the lunar space station down to the surface of the moon.

And it's budgeted at $10B/3 years, which fits into NASA's budget.

Isaacman took the Artemis program and fixed it. The reckoning came, and it's looking good.

We're about to find out.

The new NASA administrator, Isaacman, seems to have done a very good job of convincing the various Senators to, if not get rid of the pork, allow him to allocate it in a way that benefits the lunar program.

The result was the Ignition event, which looks like it's planning to send up 17 small and 4 crew-capable landers by 2028, along with a fleet of orbital assets.

You can find out more https://www.nasa.gov/ignition/ , especially the "Building the Moon Base" section. The cost is $10B spread out over 3 years.

Successful space travel is one of the few big news events where nobody has to be unhappy.

Most of the other big news events are ones where people get severely hurt, and political ones where one partly loses.

With this, we can look up at the moon, and say "Humanity did that."

This is a perfect way to put it.

Artemis II is not safe, at least by the standards we apply to things. It's the third flight of a capsule, on the second flight of the rocket, and the first flight of things like the life support system.

At the end of the day, one of the reasons astronauts are respected is they understand those risks, and go into space anyway. That doesn't mean we shouldn't try to minimize risks - but at some point the risk becomes acceptable, and the cost of reducing it too great.

To paraphrase a quote from Star Trek - risk is their business.

xAI joins SpaceX 6 months ago

The point of the Starship program is to drop the cost of a kg going to space significantly - this isn't meant to be launched with rockets that aren't fully reusable.

xAI joins SpaceX 6 months ago

SpaceX tends to expend cores they've gotten significant use out of, rather than new ones - so the core would have been "paid off" by then.

xAI joins SpaceX 6 months ago

On the other hand, Tesla vehicles have similar hardware built into them, and don't require such hands-on intervention. (And that's the hardware that will be going up.)

If I remember correctly, the original version of wordle used a word list that was run past the creator's wife, who had learned English later in life. The result was a really accessible game - none of the words felt like ones you wouldn't know. It probably makes sense to reuse words than risk losing that accessibility.

(I kept a copy of original wordle, and it seems to have 2,315 words that are possible answers.)