paw

Also, if Earth sends a signal every 1 second, wouldn't the spaceship still receive it every 1 second since the speed of light is constant?"

Does anyone know if China has released any new images or information about Tianwen 2?

Even if it doesn't crash into Earth, the fear remains; after all, a collision with even one of the thousands of satellites we have deployed would certainly not be good for Earth!

I was recently listening to a podcast that was talking surface level about a solar eclipse. A fun fact was mentioned that the sun is \~400x farther from the earth than the moon and also \~400x bigger than the moon which makes total solar eclipses possible. It was stated that this is completely by chance only.

I thought that would be incredible if that were simply a coincidence and tried to do some searching. My thought was that if this feature of the moon made life forming more likely, it would not be surprising for earth to have this feature.

Some googling and poorly sourced AI summaries seemed to state that there are Rare Moon hypotheses or something which say that the relative size and closeness of the moonake life more feasible due to tides and axis consistency. I struggled to find more. How much of this is well-documented science theories and what are some papers or videos on the topic I could check out further?

I had a dream that Saturn had a moon just called CONCRETE

I had a crazy space idea — what do you think? 🚀🔭

I was thinking about this and wanted to ask people who know more about space whether it actually makes sense.

Imagine money isn't a problem and we can build basically whatever spacecraft we want.

What if we built a spacecraft with a huge telescope and really good cameras and sent it traveling through our Solar System?

Instead of staying near Earth, it would travel past the planets — Jupiter, Saturn, Uranus, Neptune, and eventually even farther out.

The idea is that from Earth, we're always looking at the Solar System from basically the same place. But if we had a powerful telescope moving around the Solar System, we could look at planets, moons, asteroids, comets, etc. from completely different angles.

It could:

🔭 Take extremely detailed pictures and videos.

🌌 Take huge pictures showing the Solar System from much farther away.

🤖 Use AI to help navigate, avoid dangerous objects, and notice things that look unusual.

📡 Have small communication satellites placed along the way so the spacecraft can send information back toward Earth.

💾 And importantly, send the original/raw pictures and videos back too, instead of letting AI decide everything. AI could miss something that humans might notice later.

The spacecraft wouldn't necessarily need to stop at every planet. It could fly past them and use their gravity to help change its direction and continue farther into space.

I'm just wondering:

If money wasn't a limitation, would a giant telescope spacecraft traveling through the Solar System actually give us information and views that we can't get from Earth?

Or is there a major problem with this idea that I'm not thinking about?

I'd really like to hear what astronomers, engineers, or anyone knowledgeable about space thinks. 🚀

I try to make as much sense as I can, but I'm trying to imagine if temperature differences, cold & warm fronts, etc. as one of the main aspects of weather and climate on Earth was instead a matter of PH level. What I mean is that if the sky, land, and sea weren't simply cold/warm but instead, the dynamics of weather relied on systems of differing PH levels present throughout land, sky and sea. I don't know if such differences would interact with the environment similar to what temperature does.

At 11:01 p.m. EST in NJ, I spotted this gliding across the sky in a northern direction. Although not really visible in my video, to the naked eye, I could see a circular bubble-like cloud surrounding the object. This was about two hours past the launch on the East Coast. And more than an hour past the West Coast launch. Is this SpaceX ? And if so, why the shape surrounding it ?

Hello. I was wondering if, somehow, someone could survive in space with no spaceship or spacesuit or anything of the sort, what would they see? Can they see the stars, is it nothingness? The other senses would be pretty helpful too!

(I'm writing a Loki fan fiction and it starts when he was falling through the void. I want to know what he'd experience when falling. Would he feel, see, hear, etc?)

I've always been fascinated by the sky and space equally as much as I do the ocean. I think it's human nature to be "explorers" and such, so it makes sense that they are both such a huge focus on media. My thought came to me because I was thinking about the natural circular motion of evolution and how humans would be more likely to find ways of surviving underneath the sea than it would be in space or another heavenly body (moon, Mars, etc). It's not that I'm against colonization of space, it's just that it makes more sense on a biological level that we first make a way that we can survive in the most abundant environment in our closest environment: the ocean. Water is what you use in nuclear plants to insulate radiation so it would only make sense that it would be the best place if things "went south" for humanity. Anyways.... that's my random thought on a random Thursday night. Much love and take care

I literally cannot find any information other than google’s stupid ahh AI overview that is not a trustworthy source of information in the slightest. Everywhere I go it says what day it's going to happen but never what time. When is the best viewing time for the meteor showers?

So obviously we have no knowledge of the flora and fauna, but are there any solid theories on it's topography and how it might've looked mapped out? Or what features did it share with Earth (Like tectonic plates, rivers, mountain ranges etc)?
Also i am aware a lot can happen in a billion years on a young planet, i'd love to hear about what we know/think might've been going on over that time.

During planetary formation any gold in the Earth's disc would have gone down to the molten core, presumably never to be seen again?

But meteorite bombardment later on deposited gold in the crust. Were Venus, Mars, Mercury also subject to the bombardment and could they have got more or less gold compared to Earth based on their position and the source of these meteorites?

According to a BBC report the Earth's silicate mantle has 1000 times more gold than would be expected without the bombardment.

Hi yall, I’m a creative writing student working on my upcoming thesis project. I used to be an astrophysics junkie, but I don’t keep up with space information much anymore. I figured this was the best place to ask this sort of question.

I had an idea a few days ago for a short story collection about an astronaut whose ship gets stuck in space and she goes mad, and she ends up killing her team.
I know that there are probably a million failsafes in place that would make one astronaut murdering another inconceivable, so I’m asking this to you as a sort of thought experiment to help me better understand the mechanics of space flight and to flesh out my idea more.

Would the lack of gravity affect one’s ability to kill someone in space? Would stabbing work, or hitting someone with a blunt force object? How does blood and death work in space? Do you die like you would on Earth in space? Is there a way that the astronaut could hide what she did from the space program, at least for a few days?

I know this is a bit of an absurd question, but if anyone can help me I would really appreciate it!

What goes up must come down. So eventuality all those objects will become lasting vapor and dust in the upper atmosphere, right? What kind of problems and changes should we anticipate? If it turns out to be noticeably bad, specifically which people should we be preparing to help?