astronomy

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thefluffiest, w Nasa unveils quiet supersonic aircraft in effort to revive commercial flights

And exactly how much CO2 emissions does this thing generate?

joostjakob,

It makes me so mad we don’t just tell the flight industry that by date X no planes that use traditional fuel can be produced, and by date Y that they won’t be allowed to fly. Doesn’t even need to a global agreement, if the European market is closed, than that could be motivation enough. And it would focus innovation on efficiency instead of frivolous stiff like this.

happybadger, w NASA Selects a Wild Plan to "Swarm" Proxima Centauri With Thousands of Tiny Probes
@happybadger@hexbear.net avatar

As Universe Today explored in a previous post, it would take between 19,000 and 81,000 years for a spacecraft to reach Proxima Centauri using conventional propulsion (or those that are feasible using current technology)

Jesus, at 4.25 light-years.

GlitchyDigiBun,
@GlitchyDigiBun@lemmy.dbzer0.com avatar

Acceleration is a bitch. A manned flight would take longer as it would have to cap it’s thrust to 1-1.5G or risk long term effects. Not to mention having to cancel ALLL of that thrust starting at the halfway point.

happybadger,
@happybadger@hexbear.net avatar

Biology is frustrating. We’re built for everything except leaving the immediate area around the sea we crawled out of. Anything beyond that and our bones melt into cancer.

Flyberius,
@Flyberius@hexbear.net avatar

If you could maintain 1g of acceleration you would reach light speed in about a year.

TachyonTele, w First ever photo of the curvature of the Earth : December 30, 1930

Meanwhile scientists still haven’t built a mirror large enough to capture your moms ass

SurfinBird, w Strange lemon-shaped exoplanet defies the rules of planet formation

The author goes on to editorialize that the space lemon may be evil.

solo,

Personnaly, I found it very funny to read this specific sentence. Thank you for reminding it to me!

like a sort of evil lemon

prettybunnys, w I made a custom TRMNL plugin to tell me whether it’s worth taking the telescope up!

trmnl device looks perfect for my use case ( on the wall output of my greenhouse sensor data ), how do you find the plugin writng?

Is the 20$ developer edition upgrade required?

Would love to know your experience

TheFunkyMonk,

I’m honestly not sure if the developer edition is required to make custom plugins, I got the Clarity Kit upgrade for the battery upgrade, which apparently also includes the developer edition. Probably worth reaching out to them for clarification.

As for my experience, their web UI for making private plugins basically lets you provide an API endpoint for data and an interface to paste in templates (using Liquid templating). So all of my logic is completely outside of the TRMNL system in a custom API I mostly vibe coded and am hosting on a cheap server, which effectively gave me infinite freedom to build whatever I wanted and just have TRMNL handle the UI. So you could really use whatever language you prefer and just return JSON to the TRMNL. Since the logic was decoupled, I also threw together a web version using the same API.

Here’s the API code if you’re curious!

thefartographer, w Half of the universe's hydrogen gas, long unaccounted for, has been found

Was it in the couch cushions? That’s where I often find things.

Scubus,

Surprised jd vance face

Kichae, w Hubble Space Telescope YouTube channel has been deleted

Seems like it wouldn’t have cost much to keep the original channel up, though.

As if any of what’s going on has to do with costs.

Contentedness, w Toxic Mars Dust Could Pose Major Health Risks For Future Astronauts

I don’t want to sound flippant, but I feel like that’s pretty far down the ol’ crisis ladder right now.

veroxii,

It might be our only way out. Send Musk and the Magats there. Toxic sand can only help.

Frozengyro,

Have you been exposed to Mars dust!?!? You may be entitled to compensation!

p03locke,
@p03locke@lemmy.dbzer0.com avatar

If we were realistic about going to Mars, we’d start with serious plans to build an oceanic base on Earth first. Traveling to Mars is a small hurdle, in comparison to actually living there. We’d learn a lot if we built a self-sustaining base in the deep ocean.

stelelor, w Astronomers seek global ban on space advertising

Jesus fuck, Wall-E was supposed to be a dystopia, not an inspiration.

rockSlayer, w The IAC confirms the existence of a Super-earth in the habitable zone of a Sun-like Star

That orbit is better described as passing through the habitable zone. How this would affect potential life, I have no clue, but it certainly isn’t a stable orbit in the habitable zone like earth or mars

knightly,

Another article said it had 6.6 times earth’s mass, and now I’m really curious about the diameter and atmospheric composition. It sounds like it’d be a big Venus that alternates between freezing and boiling.

rockSlayer,

It sounds like an extremely interesting planet for sure, I hope they point Webb at it to get an atmospheric spectral analysis soon!

LuxSpark, w Supermassive black hole spotted 12.9 billion light-years from Earth — and it's shooting a beam of energy right at us

Black hole sun: won’t you come?

Nuke_the_whales, w Tiny glass beads suggest the moon had active volcanoes when dinosaurs roamed Earth

I didn’t realize the moon was ever anything but just a dead rock floating there

Beacon, (edited )

The leading hypothesis is that the moon was formed when a massive asteroid smashed into the earth and blasted a huge chunk of the earth into space, and that became the moon. If true then the moon's birth and younger existence was wildly cataclysmic

https://en.m.wikipedia.org/wiki/Origin_of_the_Moon

threelonmusketeers,

a massive asteroid smashed into the earth

Asteroid, or proto-planet?

Beacon,

Wiki refers to it as a "mars-sized body"

MelodiousFunk,
HurlingDurling,
@HurlingDurling@lemmy.world avatar

So… the planet or candy bar?

Yes it’s a joke, however if a mars candybar hits earth at 99.999999% of the speed of light, I’d imagine the impact would be anything but a blip

neurospice, w Voyager 1 is fully back online months after it stopped making sense.

Incredible! Can’t believe how long it’s been functioning for and how many obstacles it’s overcome. Truly a testament of human engineering

Daxtron2, w Event Horizon Telescope reveals magnetic fields around the Milky Way’s central black hole - NASASpaceFlight.com

I can’t get over how fucking cool these pictures are and how they keep getting better and better.

Sekrayray, w Most Astronauts Get ‘Space Headaches.’ Scientists Want to Know Why

They mention this in the article, but the physiology would suggest this is related to CSF/blood pooling in low G.

Taking it a step further, I bet this has a similar mechanism to IIH or the high pressure headaches you get with obstructive hydrocephalus. CSF is supposed to drain down via a relatively passive system. Without G to regulate this I can envision that you’d essentially develop the same physiology as someone with IIH (too much CSF).

Really interesting. A good example of how we have no idea what insane health things we are going to experience with space travel, but also how space travel may shed insight on treatments for other conditions with similar mechanisms we experience in a gravity well.

ieatpwns,

Haven’t this is interesting because I’ve always wondered how evolution would happen when we finally colonize in low g environs. Maybe char was on to something when he said our souls are weighed down by gravity.

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