Recent comments in /f/space

MoogProg t1_j28ugg5 wrote

Reply to comment by beef-o-lipso in What is our current "best guess" about how to observers that entered a black hole on opposite sides would look to each other once they crossed the event horizon? by WittyUnwittingly

Only spaghettification and a timeless orbit until the eventual accretion of your particles feeding the singularity removes your information from existence*

*That last part is being debated and some suggest information is not lost.

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binary_spaniard t1_j28u374 wrote

Reply to SpaceX launches Israeli reconnaissance satellite and lands rocket, marking 61st and final flight of 2022 by marketrent

Israel has paid a dedicated launch for a 400 kg satellite. This is almost a record

Probably due to the orbit retrograde LEO with 140º: this may explain the dedicated launch. They had plenty of spare capacity and the booster went back to launch site.

IXPE was a similar situation that only used 20-30% of the capacity for the equatorial orbit.

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ShadowTsukino t1_j28tdl5 wrote

Reply to Moons of jupiter by SundaeThat6683

We have not landed a probe on any of Jupiter's moons, so there wouldn't be any actual photos. You're going to have to be content with an artist's vision of it.

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pgriz1 t1_j28sq3t wrote

Reply to comment by omegasix321 in What if we kept pursuing nuclear spacecraft propulsion? by rosTopicEchoChamber

>Who cares what's running everything so long as things get done and the people are prospering?

That's the big "if" - would such an AI put human interests high on its priority list, or will it decide that we're (ie, humanity) more trouble than it's worth and need to kept limited (or even, severely reduced). Would it decide that our concepts of rights, freedoms, opportunities are now quaint anachronisms, and coerce us to a zoo-like existence? And all that speculation is not taking into account that it may feel that humanity has not proven itself capable of self-regulation, and may decide to impose "corrective" measures to restore balance.

There are also possibilities that the human contributors to the AI development deliberately fed it "curated" examples of human behaviour which then skews the AI response to favour certain groups over others.

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senormonje t1_j28rk2l wrote

Reply to comment by WittyUnwittingly in Black hole question by Impossible_Pop620

Strange. In that case does being inside the event horizon isolate a given piece of matter (prior to becoming part of the singularity) from outside gravitational influences, no matter how strong... even another black hole? Is this because of the propagation speed of gravity?

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Mackheath1 t1_j28rjgx wrote

Reply to comment by xxx_pussyslayer_420 in Every planet in the solar system visible in rare "planet parade" by scot816

Yes. I have a friend who occasionally goes to 'psychics'. At first I wanted to ask, "Uh, how much do you pay them??" But after hearing her description about how they talk about her relationships, worries, stresses, hopes, etc.

The psychic who sees many people a day, doesn't give her false promises or anything, but is more like a therapist. And honestly, in this particular situation, I'd say better than a therapist. And cheaper.

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Xentavious_Magnar t1_j28p6me wrote

Reply to comment by kimthealan101 in What is our current "best guess" about how to observers that entered a black hole on opposite sides would look to each other once they crossed the event horizon? by WittyUnwittingly

Relative to people outside. Inside the event horizon, all world lines converge on the singularity, so you'll end up there eventually. How long that would subjectively take for the person inside is a fun question that I don't know the answer to.

Edit: also assuming people outside could see you, which they can't because any light bouncing off of you will also follow a world line into the singularity and never make it to them.

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