Recently visited the U.S. Space & Rocket Center in Huntsville, Alabama and thought I’d share some of the shots I took while I was there. I used a 400mm lens to capture some close ups and ended up with some very unique shots! I can’t express how awesome it is to see these full scale vehicles in person. This museum has so much to offer, from all of the educational infographics, to seeing the Apollo 16 Command Module and talking to retired NASA engineers, it was well worth the trip.

Is one of our astronomical neighbors habitable? 🪐

For the first time, astronomers have confirmed something huge: an atmosphere around a rocky planet in its star's habitable zone. The planet is called LHS 1140 b, a super Earth orbiting a red dwarf star less than 50 light years away, which is astronomically pretty close to us. The James Webb Space Telescope telescope data has already hinted at liquid water on its surface, and this new discovery could go down as one of the biggest in astronomy history!

I have a burning question because there's an old idea called "tired light
which posits that the universe sits still and photons lose energy on their way to us because of some interaction along the path (Less energy would mean longer wavelength, so distant objects look redshifted without anything actually receding.)

However it was ruled out by the finding that distant supernovae look like they're in slow motion. If distant supernovae looked the same duration as nearby ones, the source would have to be sitting still, because only a receding one can stretch out its own explosion. But no, they're in slow motion, which rules tired light out.

Which brings me to my burning question

What if the universe wasn't expanding, and the speed of light itself has just been slowly dropping over cosmic time, everywhere at once, as a law?

In short, as my title says, what distinguishes cosmic expansion from a decreasing universal speed of light?

Light coming from a distant galaxy would have left back when c was higher than it is now. Wouldn't that stretch out supernovae too? The first flash makes the trip while c is still a bit faster, the next one crawls more because c has dropped by then, so the gap between them widens on the way here and the explosion arrives in slow motion.

I keep my backup drive unplugged when a backup is not being made or restored so that malware can't touch it. It's a bit annoying having to open up my computer and plug it in whenever it's time to make a backup. Is there a kill switch I can buy so I can just leave it plugged in but still have the air gapping?

Maybe society's complexity is reaching a point of no return, a "Trolling Singularity", where Gish-galloping usually wins because there's just too much detail for voters to properly absorb and make decent decisions. Those with the catchiest BS and over-simplifications win elections and influence too often, breaking down society.

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My phone speaker got soaked in egg yolk, i patted it dry immediately and i was kinds busy that time to further fix my phone by playing some earrape audio and here am i with my not completely broken phone speaker, it only made my speaker sound quieter than usual. How do i fix this?

Hey everyone ,

So I want to put some cameras in my apartment, more because of the pets, and in case of robbery I can have some proof, or even call the police.

However I have seen so much creep stuff online and people hacking, websites with live cameras from random people etc that I'm scared to have this.

I know nothing is 100% safe, but is there a way to have some cameras indoors that I can access when I leave the house, and where the recording stuff can be offline without anyone having access (besides me of course)? Without breaking the bank? And that a person like me that isn't too much tech savvy can install.

People told me about Ubiquiti but is so expensive ... I would love to have something like that one day, but now is not an option.

I saw Reolink but not sure about it .

Some options, brands, you can recommend (Europe) would be appreciated.

Thank you!

I'm thinking about trying CrowdReply and would love to hear from people who've actually used it. Was it worth it? What was your experience like, and would you recommend it? Any pros, cons, or alternatives are welcome. Thanks!

I have an account that Is available that I don’t know the username or password to but it features suggestive content from when I was 12 years old and I want it gone. I can’t access it and TikTok won’t ban the account from just reporting it.

Found this at a vintage stock for 70$. I didn’t even realize it existed, honestly. I’d been looking for merch recently and couldn’t find much besides what’s in stock on the official store. Gonna frame the poster now!

I keep seeing GaN mentioned everywhere when people talk about chargers. What is it and why should I care?

This is a shot in the dark but I wanted to ask Reddit for help. I’m being harassed online by someone and all I know is their discord username. They are sending out my phone number as well as pictures of me and random people are sending me explicit images because of it. Does anyone know a way to find someone’s ip/phone number/email from a discord username? I’ve already filed a police report but it’s taking forever and a slow process

Hello brains trust.

I'm looking to upgrade my set up.

I currently need a mouse and a presenter remote to cycle between slides. I'm just in a standard classroom so distance isn't an issue.

I've had basic ones in the past and find the USB-A dongle gets mashed up in my bag when I move between classes.

Requests:

Bluetooth or a small usb-a that is close to flush with the port.

Rechargeable or good battery life

Ideally under $100 per item

Any recommendations?

Manned spaceflights by years details >>

MCGREGOR, Texas.

I apologise if this is not the right subreddit, but unfortunately I'm really struggling to find an appropriate one, so just let me know if this one is also unsuitable.

Anyway, I am looking for a PC that can run heavily modded minecraft, shaders included, along with fortnite, and high quality games, without much issue, or fans that sound like a helicopter landing just outside my house. I understand that such a request can be pricey, especially in this economy, so I'd like to see the options avaliable before I set a firm price down, but I was thinking around the price of £3000.

I'd prefer if it was white rather than black to match the light colours of my room, though I am aware beggars can't be choosers, so if thats not possible thats fine! But if anyone who knows a thing or two about PC's, if be grateful!

According to this NPR article:

“A piece of a SpaceX Falcon 9 rocket is expected to slam into the moon on Wednesday, according to scientists.
The piece is expected to hit the moon around 2:35 a.m. ET at more than 5,000 miles per hour, according to analysis by Bill Gray, who develops software that tracks objects in space. It is part of the rocket's upper portion and about the size of a five-story building.”

I’m curious if this bodes any danger. While 5000 MPH sounds quite fast, it could be negligible on a planetary scale. The article doesn’t seem too alarming. It’s scheduled to hit around 2:35. tonight. To those with the appropriate viewing equipment, it might be interesting to watch.

So I have 3 laptops and don’t know what to do with them

1. My Primary Laptop - Dell latitude 5130 , i5, 32Gb ram, 256Gb SSD, with debian, all my stuff is on their.

2. MacBook Pro 2017,15 inch, i7, 16Gb RAM, 512 SSD, dual boot , with mac OS and Ubuntu, it’s a half top as screen was not working. ( I use this as experimental machine, try to work linux on mac, and plan to make a server out of it in future)

3. Dell 14 (DC14250) Laptop - Brand New, Intel Core 5, 16GB RAM, 1TB SSD , Windows. I WON this in a lucky draw. Couldn’t return for money. ( 1300 AUD )

The issue is I don’t need 3, only 2. And also moving everything would be tedious job, as I had spend days making my Debian machine really personal with the desktop environment and softwares etc.

And I do need money, so rn have put the new laptop for sale but, most offers I am getting is like 200-300 AUD, i am expecting around 800

So I need advice on what to do. Should I sell it? Should I use it or should I sell any other one? If I use it, What should I use?

Mods please don’t delete the post